Newest KB Articles in Clever Internet .NET Suite

Clever Internet .NET Suite version 11.0 overview

Tue, 16 Jan 2024 19:00:39 GMT

These Internet components give you everything you need to jumpstart your Internet development without any external dependencies. The suite of Internet Components contain over fifty components which are constantly refined and improved.

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet .NET Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Download / upload over HTTP, HTTPS, FTP, FTP+SSL, and SFTP.
Connect REST API using JSON.
Send / receive mail using TLS and S/MIME.
HTTP, FTP, SFTP, SMTP, POP3, IMAP, and NNTP client / server.
SFTP public-key authorization.
OAUTH 2.0, JWT, and many more.

The new Version 11.0 significantly improves the SFTP functionality, increases the connecting and file transferring speed, and extends a list of supported SFTP services.
The updated DNS Query component can retrieve domain SOA records, resolve IP, MX, and reverse zone information using primary name servers.
The other components were improved and updated, as well. See the complete change list below.

The Help documentation is included in the Clever Internet .NET Suite installation and also available at our website: Clever Internet .NET Suite downloads

What's new in Version 11.0

The improved MailMessage component allows you to specify a user-defined name for any attached file or embedded resource.
MIME header encoding was fixed for Quoted-Printable and RFC-2047 fields.
The Imap4Server component was optimized. The updated GetMessages event args allow you to filter the returned message set and do not collect all mailbox messages when handling IMAP4 commands.
Minor fixes and improvements.
The library provides the full Visual Studio 2022 support.

Implemented features

Supported Visual Studio versions: 2010, 2012, 2013, 2015, 2017, 2019, and 2022. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects.
The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced.
This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3, and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH client and server components.
Send / receive JSON over HTTP.
International domain names for HTTP components.
The ability to verify client and server credentials.
HTTPS Client - TLS1.2 support, TLS1.3-ready, NTLM, Kerberos, and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - implicit, explicit, and automatic TLS modes. STARTTLS command support.
NTLM authentication for all mail clients: POP3, SMTP, and IMAP.
POP3, SMTP clients - GMAIL and Office365 support, OAUTH 2.0 authorization.
FTP Client - SSL / TLS support, FTP FXP (Site to Site) transfer mode.
FTP Server - user events for handling files and directories, keeping FTP diretory structure in memory.
Creating signed and self-signed certificates, working with Windows certificate storage.
Import / export certificates in PEM, DER, CER, and PFX formats.
Sending and retrieving Emails in MIME format, with file Attachments and Embedded pictures. Saving attachments to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP, and CRAM-MD5 authentication, keeping the mailbox structure in memory and on the disk.
Web DAV - managing remote files, folders, and extended properties on a web server.
DNS Query - retrieving mail exchange domains (MX records), resolving host IP addresses, name servers, and TXT records.
DNS Server - managing handed and cached DNS zones.
SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - extracting HTML Tags: links, images, tables, meta and other tags.
GZip compressor - compressing / uncompressing data or files.
RSS client - creating, retrieving, and editing RSS feeds.
Email validation components - validating Email addresses, service and mailbox availability, handling bounced Emails.
Trace Logger - saving debug and stack information.
Royalty-free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.

Also a set of additional classes and components are available: Mail Message, HTTP Request, GZip compressor, MIME Encoder, S/MIME message, HTML Parser.
All these components make the application development process easy and clean. You can use these components together with any third-party libraries.

Visit our site Clever Components to learn more about our products.

Join us on Facebook, Twitter, Telegram, Newsletter

Watch our YouTube channel.

Tutorials, demos, and example are available on GitHub

Fixed bugs

The algorithm of obtaining the Subject Email address for the certificate was fixed.
The mail header parser was fixed to correctly encode/decode underline chars within the header fields.
The SFTP server didn't create the directory structure when saving the uploaded file - fixed.
Some design-time components' properties didn't have default values - fixed.
Other minor fixes.

Known problems and restrictions

FTP client and server - data connection uses IpV4 protocol only.
Socks5 firewall - supports IpV4 only.

Demo / Trial version

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and
raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please visit our Customer Portal

Clever Internet .NET Suite version 10.2 overview

Tue, 05 Apr 2022 15:41:01 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet .NET Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Download / upload over HTTP, HTTPS, FTP, FTP+SSL, and SFTP.
Connect REST API using JSON.
Send / receive mail using TLS and S/MIME.
HTTP, FTP, SFTP, SMTP, POP3, IMAP, and NNTP client / server.
SFTP public-key authorization.
OAUTH 2.0, JWT, and many more.

The new Version 10.2 significantly improves the SFTP functionality, increases the connecting and file transferring speed, and extends a list of supported SFTP services.
The updated DNS Query component can retrieve domain SOA records, resolve IP, MX, and reverse zone information using primary name servers.
The other components were improved and updated, as well. See the complete change list below.

The Help documentation is included in the Clever Internet .NET Suite installation and also available at our website: Clever Internet .NET Suite downloads

What's new in Version 10.2

The default value for the SSH packet's payload size was reduced to 32Kb in order to support more third-party SFTP clients and servers. This parameter can be tuned using the BatchSize property of both the SFTP client and the server.
The SFTP server was improved. The new version of this component supports more SFTP clients and implements both the client-first and the server-first approaches of starting the SSH session.
Added the certificate chain validation timeout and an options to ignore the revocation errors during the TLS/SSL handshake.
The RevocationFlags enumeration was replaced with a set of CertificateChainVerifyFlags flags. The new option allows tuning up the certificate chain validation more flexibly.
The DnsQuery component was improved. Added retrieving a domain SOA record.
The IP, MX, and reverse zone resolving was improved in the DnsQuery component with a help of using primary name servers for domains.
The independent SOCKS4 and SOCKS4a support was introduced. This new feature allows firewalls to automatically resolve the connected host name.
The HTTP requests submission was improved when using requests with file and image attachments. Now the attachment streams are requested only once during the sending process.
The Imap4Server component was optimized. The updated GetMessages event args allow you to filter the returned message set and do not collect all mailbox messages when handling IMAP4 commands.
The library provides the full Visual Studio 2022 support.

Implemented features

Supported Visual Studio versions: 2010, 2012, 2013, 2015, 2017, 2019, and 2022. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects.
The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced.
This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3, and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH client and server components.
Send / receive JSON over HTTP.
International domain names for HTTP components.
The ability to verify client and server credentials.
HTTPS Client - TLS1.2 support, TLS1.3-ready, NTLM, Kerberos, and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - implicit, explicit, and automatic TLS modes. STARTTLS command support.
NTLM authentication for all mail clients: POP3, SMTP, and IMAP.
POP3, SMTP clients - GMAIL and Office365 support, OAUTH 2.0 authorization.
FTP Client - SSL / TLS support, FTP FXP (Site to Site) transfer mode.
FTP Server - user events for handling files and directories, keeping FTP diretory structure in memory.
Creating signed and self-signed certificates, working with Windows certificate storage.
Import / export certificates in PEM, DER, CER, and PFX formats.
Sending and retrieving Emails in MIME format, with file Attachments and Embedded pictures. Saving attachments to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP, and CRAM-MD5 authentication, keeping the mailbox structure in memory and on the disk.
Web DAV - managing remote files, folders, and extended properties on a web server.
DNS Query - retrieving mail exchange domains (MX records), resolving host IP addresses, name servers, and TXT records.
DNS Server - managing handed and cached DNS zones.
SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - extracting HTML Tags: links, images, tables, meta and other tags.
GZip compressor - compressing / uncompressing data or files.
RSS client - creating, retrieving, and editing RSS feeds.
Email validation components - validating Email addresses, service and mailbox availability, handling bounced Emails.
Trace Logger - saving debug and stack information.
Royalty-free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.

Visit our site Clever Components to learn more about our products.

Join us on Facebook, Twitter, Telegram, Newsletter

Watch our YouTube channel.

Tutorials, demos, and example are available on GitHub

Fixed bugs

The algorithm of obtaining the Subject Email address for the certificate was fixed.
The mail header parser was fixed to correctly encode/decode underline chars within the header fields.
The SFTP server didn't create the directory structure when saving the uploaded file - fixed.
Some design-time components' properties didn't have default values - fixed.
Other minor fixes.

Known problems and restrictions

FTP client and server - data connection uses IpV4 protocol only.
Socks5 firewall - supports IpV4 only.

Demo / Trial version

For more details please visit our Customer Portal

Clever Internet .NET Suite version 10.1 overview

Wed, 13 Oct 2021 07:43:37 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet .NET Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Download and upload files over HTTPS.
Post JSON data.
Send and retrieve Emails with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server components.
SFTP client / server with public-key authorization.
OAUTH 2.0 authorization, and many more.

In this new Version 10.1 we have introduced the SFTP Server component and also the TCP Client / Server components, which can be used to implement any custom data exchanging.
The SSH engine was totally redesigned and improved to support more SSH channels.
Also, we have fixed some existing problems with the SFTP and HTTP clients, the OAUTH component, the SOAP Security engine, and the SSH protocol implementation.
See the complete change list below.

The Help documentation is included in the Clever Internet .NET Suite installation and also available at our website: Clever Internet .NET Suite downloads

What's new in Version 10.1

The SFTP Server component for .NET was implemented;
The new SFTP File Handler component for C# and VB.NET allows the SFTP server to handle files on the disk;
The TCP Client, TCP Server, TCP Command Client, and TCP Command Server components are available in the Visual Studio Toolbox;
Both UDP Client and UDP Server components are available in Toolbox, as well;
Public-Key authorization was implemented in the SFTP Server component;
The following class renamings were made in order to clean up and simplify the library structure: SshUserKey -> PrivateKey, SshUserIdentity -> IUserIdentity;
The implemented Starting event occurs before running the TcpServer component and allows refreshing cached data, such as UserAccount settings;
The GetResponseCode event was added to all TCP-based clients. The event allows implementing own handlers for server responses;
The FileExists method was improved in the SFTP client component to support non-standard SFTP server responses;
IMAP Server - added the IMAP partial fetch functionality;
MailMessage - added the X-Mailer header support;
The 'diffie-hellman-group14-sha256' key exchange algorithm was added to the SSH engine for .NET;
Other minor fixes and improvements.

Implemented features

Supported Visual Studio versions: 2010, 2012, 2013, 2015, 2017, and 2019. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects.
The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced.
This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3, and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests with JSON data.
International domain names for HTTP components.
The ability to verify client and server credentials.
HTTPS Client - TLS1.2 support, TLS1.3-ready, NTLM, Kerberos, and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - implicit, explicit, and automatic TLS modes. STARTTLS command support.
NTLM authentication for all mail clients: POP3, SMTP, and IMAP.
POP3, SMTP clients - GMAIL and Office365 support, OAUTH 2.0 authorization.
FTP Client - SSL / TLS support, FTP FXP (Site to Site) transfer mode.
FTP Server - user events for handling files and directories, keeping FTP diretory structure in memory.
Creating signed and self-signed certificates, working with Windows certificate storage.
Import / export certificates in PEM, DER, CER, and PFX formats.
Sending and retrieving Emails in MIME format, with file Attachments and Embedded pictures. Saving attachments to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP, and CRAM-MD5 authentication, keeping the mailbox structure in memory and on the disk.
Web DAV - managing remote files, folders, and extended properties on a web server.
DNS Query - retrieving mail exchange domains (MX records), resolving host IP addresses, name servers, and TXT records.
DNS Server - managing handed and cached DNS zones.
SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - extracting HTML Tags: links, images, tables, meta and other tags.
GZip compressor - compressing / uncompressing data or files.
RSS client - creating, retrieving, and editing RSS feeds.
Email validation components - validating Email addresses, service and mailbox availability, handling bounced Emails.
Trace Logger - saving debug and stack information.
Royalty-free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.

Visit our site Clever Components to learn more about our products.

Join us on Facebook, Twitter, Telegram, Newsletter

Watch our YouTube channel.

Tutorials, demos, and example are available on GitHub

Fixed bugs

The FTP client component caused errors on some FTP servers when requesting a currently selected folder - fixed;
The OAuth component didn't allow specifying a client ID and also a client secret parameters for the Client Credentials authorization flow - fixed;
The SSH engine incorrectly handled pipelined packets while downloading and uploading data - fixed;
The WebDAV component for .NET incorrectly worked with default namespaces when placing the component on to the form - fixed;
Default values for .NET component properties were fixed. The issue concerns to all library components;
The partial file downloading / uploading mode worked incorrectly in the SFTP client component for .NET - fixed;
HTTP Client - chunked data was downloaded incompletely becase of unexpectedly closed connection - fixed;
Other minor fixes.

Known problems and restrictions

FTP client and server - data connection uses IpV4 protocol only.
Socks5 firewall - supports IpV4 only.

Demo / Trial version

For more details please visit our Customer Portal

Clever Internet .NET Suite version 9.6 overview

Thu, 04 Jun 2020 07:19:16 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet .NET Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Download and upload files over HTTPS.
Post JSON data.
Send and retrieve Emails with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server components.
SFTP client with public-key authorization.
OAUTH 2.0 authorization, and many more.

In this new Version 9.6 we have improved the SFTP component, added new cryptographic keys and algorithms.
We have fixed some existing problems with digital signatures and 64bit support in the SSH engine. See the complete change list below.

The Help documentation is included in the Clever Internet .NET Suite installation and also available at our website: Clever Internet .NET Suite downloads

What's new in version 9.6

Certificate management improvements: new Certificate properties were added, new functions to search certificates by issuers, serial numbers, and subjects were implemented.
Starting from version 9.5, you can specify a certificate serial number as a big-integer string.
New encryption algorithms were added to the SFTP public-key authorization: aes-128-cbc, aes-192-cbc, aes-256-cbc, aes-128-ctr, aes-192-ctr, and aes-256-ctr.
Logger improvements: the maximum dump size limit was implemented.
The MailMessage.MessageText property was improved to support iPhone Emails with attached pictures.
The ConnectTimeout property was added to all Internet clients components.
The updated SFTP component provides the ability to specify a character encoding for paths.
Added the ability to obtain an SFTP host-key information.
SSPI error handling improvements: new status messages and codes were added.
Other minor fixes and improvements.

Implemented Features

Supported Visual Studio versions: 2010, 2012, 2013, 2015, 2017, and 2019. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects.
The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced.
This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3, and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests with JSON data.
International domain names for HTTP components.
The ability to verify client and server credentials.
HTTPS Client - TLS1.2 support, TLS1.3-ready, NTLM, Kerberos, and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - implicit, explicit, and automatic TLS modes. STARTTLS command support.
NTLM authentication for all mail clients: POP3, SMTP, and IMAP.
POP3, SMTP clients - GMAIL and Office365 support, OAUTH 2.0 authorization.
FTP Client - SSL / TLS support, FTP FXP (Site to Site) transfer mode.
FTP Server - user events for handling files and directories, keeping FTP diretory structure in memory.
Creating signed and self-signed certificates, working with Windows certificate storage.
Import / export certificates in PEM, DER, CER, and PFX formats.
Sending and retrieving Emails in MIME format, with file Attachments and Embedded pictures. Saving attachments to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP, and CRAM-MD5 authentication, keeping the mailbox structure in memory and on the disk.
Web DAV - managing remote files, folders, and extended properties on a web server.
DNS Query - retrieving mail exchange domains (MX records), resolving host IP addresses, name servers, and TXT records.
DNS Server - managing handed and cached DNS zones.
SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - extracting HTML Tags: links, images, tables, meta and other tags.
GZip compressor - compressing / uncompressing data or files.
RSS client - creating, retrieving, and editing RSS feeds.
Email validation components - validating Email addresses, service and mailbox availability, handling bounced Emails.
Trace Logger - saving debug and stack information.
Royalty-free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.

Visit our site Clever Components to learn more about our products.

Join us on Facebook, Twitter, Telegram, Newsletter

Watch our YouTube channel.

Tutorials, demos, and example are available on GitHub

Fixed bugs

HTTP Proxy fix - the connection hanged on some HTTPS proxies. The issue caused hanging in the HTTP client component.
SFTP Client fix - the component hanged when connecting to some SFTP hosts, which have the large data window size.
Fixed bugs in the SFTP public-key authorization engine.
Fixed bug in the Http client component when working with the HTTP CONNECT proxy.
The HttpProxy component hangs when disconnecting from a host - fixed.
Fixed bugs in the HttpRequest component when parsing multipart MIME requests.
Fixed bugs in the SFTP component when downloading and uploading large files.
The Invalid signature error was fixed in the SFTP component when downloading and uploading files of specific size.
Other minor fixes.

Known problems and restrictions

FTP client and server - data connection uses IpV4 protocol only.
Socks5 firewall - supports IpV4 only.

Demo version information

For more details please visit our Customer Portal

Clever Internet .NET Suite version 9.5 overview

Tue, 10 Mar 2020 17:31:41 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet .NET Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Download and upload files over HTTPS.
Post JSON data.
Send and retrieve Emails with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server components.
SFTP client with public-key authorization.
OAUTH 2.0 authorization, and many more.

In this new Version 9.5 we have improved the SFTP component, added new cryptographic keys and algorithms.

We have fixed some existing problems with digital signatures and 64bit support in the SSH engine. See the complete change list below.

The Help documentation is included in the Clever Internet .NET Suite installation and also available at our website: Clever Internet .NET Suite downloads

What's new in version 9.5

Certificate management improvements: new Certificate properties were added, new functions to search certificates by issuers, serial numbers, and subjects were implemented.
Starting from version 9.5, you can specify a certificate serial number as a big-integer string.
New encryption algorithms were added to the SFTP public-key authorization: aes-128-cbc, aes-192-cbc, aes-256-cbc, aes-128-ctr, aes-192-ctr, and aes-256-ctr.
Logger improvements: the maximum dump size limit was implemented.
The MailMessage.MessageText property was improved to support iPhone Emails with attached pictures.
The ConnectTimeout property was added to all Internet clients components.
The updated SFTP component provides the ability to specify a character encoding for paths.
Added the ability to obtain an SFTP host-key information.
SSPI error handling improvements: new status messages and codes were added.
Other minor fixes and improvements.

Implemented Features

Supported Visual Studio versions: 2010, 2012, 2013, 2015, 2017, and 2019. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects. The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced. This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3, and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests with JSON data.
International domain names for HTTP components.
The ability to verify client and server credentials.
HTTPS Client - TLS1.2 support, TLS1.3-ready, NTLM, Kerberos, and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - implicit, explicit, and automatic TLS modes. STARTTLS command support.
NTLM authentication for all mail clients: POP3, SMTP, and IMAP.
POP3, SMTP clients - GMAIL and Office365 support, OAUTH 2.0 authorization.
FTP Client - SSL / TLS support, FTP FXP (Site to Site) transfer mode.
FTP Server - user events for handling files and directories, keeping FTP diretory structure in memory.
Creating signed and self-signed certificates, working with Windows certificate storage.
Import / export certificates in PEM, DER, CER, and PFX formats.
Sending and retrieving Emails in MIME format, with file Attachments and Embedded pictures. Saving attachments to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP, and CRAM-MD5 authentication, keeping the mailbox structure in memory and on the disk.
Web DAV - managing remote files, folders, and extended properties on a web server.
DNS Query - retrieving mail exchange domains (MX records), resolving host IP addresses, name servers, and TXT records.
DNS Server - managing handed and cached DNS zones.
SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - extracting HTML Tags: links, images, tables, meta and other tags.
GZip compressor - compressing / uncompressing data or files.
RSS client - creating, retrieving, and editing RSS feeds.
Email validation components - validating Email addresses, service and mailbox availability, handling bounced Emails.
Trace Logger - saving debug and stack information.
Royalty-free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.

Also a set of additional classes and components are available: Mail Message, HTTP Request, GZip compressor, MIME Encoder, S/MIME message, HTML Parser. All these components make the application development process easy and clean. You can use these components together with any third-party libraries.

Visit our site Clever Components to learn more about our products.

Join us on Facebook, YouTube, Twitter, Telegram, Newsletter

Tutorials, demos, and example are avaiable on GitHub

Fixed bugs

Fixed bugs in the SFTP public-key authorization engine.
Fixed bug in the Http client component when working with the HTTP CONNECT proxy.
The HttpProxy component hangs when disconnecting from a host - fixed.
Fixed bugs in the HttpRequest component when parsing multipart MIME requests.
Fixed bugs in the SFTP component when downloading and uploading large files.
The Invalid signature error was fixed in the SFTP component when downloading and uploading files of specific size.
Other minor fixes. Known problems and restrictions
FTP client and server - data connection uses IpV4 protocol only.
Socks5 firewall - supports IpV4 only.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please visit our Customer Portal

Clever Internet .NET Suite version 9.4 overview

Mon, 09 Sep 2019 06:45:20 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Downloading, uploading and submitting of the Internet-resources.
Sending and receiving e-mail messages with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server solutions.
secure channel with X509 certificates support.
OAUTH 2.0 authorization and many more.

What's new in version 9.4

Visual Studio 2019 support was introduced.
A new HTTP Proxy component was implemented. The component opens an HTTP tunnel using the CONNECT method and returns a new proxied connection. You can use it together with any TCP protocol, such as FTP, SMTP, and IMAP. All Clever Internet Suite client components support the HttpProxy component. Each client provides the Proxy property, that can be used to specify an instance of the HttpProxy component. The component's interface allows you to create a proxy chain, and communicate via two, or more proxy servers.
The HTTP proxy support was added to all protocols, including SFTP.
EppServer, FtpServer, Imap4Server, NntpServer, Pop3Server, and SmtpServer - added a new OnCreateUserAccount event. The event allows you to create an instance of a user account on the fly, and do not keep user credentials in the UserAccounts collection. You can load them from an arbitrary source: database, file, etc.
BounceChecker: a new property ExtractedEmails was added. The property returns a list of extracted e-mail addresses when calling the ExtractEmails or the CheckBounced methods.
The following encodings were implemented: Percent Encoding, HTTP Form Field Encoding, Mail Header Encoding (see the PercentEncoder, FormFieldEncoder, Rfc2231HeaderEncoder classes, correspondingly).
The updated Encoder and the MailMessage components allow you to skip malformed data in an input stream and extract as many valid data as possible. You can set up the components' behavior using the ErrorProcessing property.
The FTP Client component now supports the HTTP Connect proxy.
Starting from v9.4, you can use the OAuth.Active property to determine the component activity state.
A new example was added: SMTP Client over HTTP Connect Proxy.

Implemented Features

Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3 and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests in JSON format.
Royalty free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.
International domain names for HTTP components.
The ability to verify the client and server credentials and certificates.
HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - three new TLS modes - implicit, explicit and automatic. STARTTLS command support.
NTLM authentication for all mail clients was added: POP3, SMTP, IMAP. When the UseSasl option enabled, these components automatically determine and use the most secured authentication method.
POP3, SMTP clients - working with GMAIL service with OAUTH 2.0 authorization.
Fully functional HTTP / HTTPS client.
FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions. FTP FXP (Site to Site) transfer mode.
FTP Server - custom events for all operations with files and directories on the server, the possibility to customize all file-related operations including compressing and uncompressing functionality. Virtual File System.
Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
Creating self-signed certificates, working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
Creating and parsing email messages in any format with file Attachments and Embedded pictures, the ability to determine the attachment size before saving it to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP and CRAM-MD5 authentication methods, File System message storage.
POP3, SMTP and IMAP4 clients - SSL / TLS support, NTLM and CRAM-MD5 authentication methods.
Web DAV - manages remote files and folders on a web server.
DNS Query - queries a DNS server for records. This component can retrieve the mail exchange domain (MX records), resolve the host IP, retrieve the information about name servers and many other information from the DNS server.
DNS Server - implements fully functional DNS server and allows you to both manage handed DNS zones and cache non-authoritative DNS records.
SMTP Relay - implements a SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - parse HTML Tags: links, images, tables, meta tags and many more.
GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
RSS client - is used for creating, retrieving, and editing RSS feeds.
Email validation components - allow you to validate recipients email addresses, mailbox availability and also handle bounced emails.
Trace Logger - provides logging functionality for storing debug information and tracing your code.

Also a set of additional classes and components are available: Mail Message, HTTP Request, GZip compressor, MIME Encoder, S/MIME message, HTML Parser. All these component make the application development process easy and clean. You can use these components separately from the main protocol components with any other library and even with your own socket implementation.

The current version of the Clever Internet Suite uses the Bouncy Castle Cryptographic C# API for ASN1 encoding functionality. This library is used when importing/exporting RSA private keys. If you are not planning to use the crytographic functionality, simple remove the BouncyCastle.Crypto.dll library from you project References list.

Please visit our site Clever Components to learn more about our products. Feel free to join our Mail List Subscription and stay tuned.

Fixed bugs

The MailMessage component stopped working when parsing malformed bodies in base64 format - improved.
The HTTP client component worked incorrectly with the HTTP SSL tunnel - fixed.
The IMAP client incorrectly decoded Chinese mailbox names - fixed.
Minor fixes and improvements.

IpV6 Notes

Currently, the following components support IpV6 with some restrictions:

Socks5 firewall - supports IpV4 only;
Ftp client and FtpServer - data connection uses IpV4 protocol only.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please contact Customer Portal

Clever Internet .NET Suite version 9.3 overview

Tue, 05 Feb 2019 13:37:37 GMT

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Download
Purchase
Product Description

Using the Clever Internet Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Downloading, uploading and submitting of the Internet-resources.
Sending and receiving e-mail messages with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server solutions.
secure channel with X509 certificates support.
OAUTH 2.0 authorization and many more.

What's new in version 9.3

Supported Visual Studio versions: 2010, 2012, 2013, 2015 and 2017. Minimal .NET Framework version is 4.0.
.NET Core support. The Clever Internet .NET Suite library can be used in the .NET Core-based projects. The library is built on using the .NET Framework 4. Starting with .NET Standard 2.0, the .NET Framework compatibility mode was introduced. This compatibility mode allows .NET Standard and .NET Core projects to reference .NET Framework libraries.
The MIME Parameter Continuation and Header Encoding Extensions were implemented. See RFC-2231.
The IsIpV6Preferred global variable was removed.
The new UseIpV6 property was introduced to all protocol components: HTTP, FTP, SMTP, IMAP, and etc.
The new NonPersistentStream class was implemented. In addition to NullStream, this new class provides both the Seek and SetLength methods.
The CSP property was renamed to SecurityPackage in the protocol components: HTTP, FTP, SMTP, etc.
The Clever Internet .NET Suite installation packages are signed with the COMODO code-signing digital certificate.

Implemented Features

Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3 and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests in JSON format.
Royalty free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.
International domain names for HTTP components.
The ability to verify the client and server credentials and certificates.
HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - three new TLS modes - implicit, explicit and automatic. STARTTLS command support.
NTLM authentication for all mail clients was added: POP3, SMTP, IMAP. When the UseSasl option enabled, these components automatically determine and use the most secured authentication method.
POP3, SMTP clients - working with GMAIL service with OAUTH 2.0 authorization.
Fully functional HTTP / HTTPS client.
FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions. FTP FXP (Site to Site) transfer mode.
FTP Server - custom events for all operations with files and directories on the server, the possibility to customize all file-related operations including compressing and uncompressing functionality. Virtual File System.
Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
Creating self-signed certificates, working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
Creating and parsing email messages in any format with file Attachments and Embedded pictures, the ability to determine the attachment size before saving it to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP and CRAM-MD5 authentication methods, File System message storage.
POP3, SMTP and IMAP4 clients - SSL / TLS support, NTLM and CRAM-MD5 authentication methods.
Web DAV - manages remote files and folders on a web server.
DNS Query - queries a DNS server for records. This component can retrieve the mail exchange domain (MX records), resolve the host IP, retrieve the information about name servers and many other information from the DNS server.
DNS Server - implements fully functional DNS server and allows you to both manage handed DNS zones and cache non-authoritative DNS records.
SMTP Relay - implements a SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - parse HTML Tags: links, images, tables, meta tags and many more.
GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
RSS client - is used for creating, retrieving, and editing RSS feeds.
Email validation components - allow you to validate recipients email addresses, mailbox availability and also handle bounced emails.
Trace Logger - provides logging functionality for storing debug information and tracing your code.

Please visit our site Clever Components to learn more about our products. Feel free to join our Mail List Subscription and stay tuned.

Fixed bugs

The TLS mode activation for the data channel of the FtpServer component was fixed.
The SecurityPackage fix for both the AsyncClient and the FtpServer components was implemented.
The HTTP Put method call without the responseBody causes the timeout error - fixed.
The MailMessage parser causes the "List index error" when parsing malformed messages - fixed.
The Q-encoding algorithm was fixed in the MIME header classes.
The SMTP server component sends a response to the QUIT command after closing the connection - fixed.

IpV6 Notes

Currently, the following components support IpV6 with some restrictions:

Socks5 firewall - supports IpV4 only;
Ftp client and FtpServer - data connection uses IpV4 protocol only.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please contact Customer Portal

Clever Internet .NET Suite version 9.2 overview

Sat, 02 Feb 2019 09:27:35 GMT

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Purchase
Product Description

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Using the Clever Internet Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Downloading, uploading and submitting of the Internet-resources.
Sending and receiving e-mail messages with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server solutions.
secure channel with X509 certificates support.
OAUTH 2.0 authorization and many more.

What's new in version 9.2

Supported Visual Studio versions: 2010, 2012, 2013, 2015 and 2017. Minimal .NET Framework version is 4.0.
SFTP - new strong cryptographic algorithms were added, SSH connection problems were fixed.
Get ready for TLS 1.3 - the components will use the new protocol after the official TLS 1.3 release.
The ability to provide the root certificate for SSL/TLS connections was implemented. The new SendRootCertificate property was added to all the client and server components.
Added an option to use the only strong cryptographic algorithms (disable known weak cryptographic algorithms, cipher suites, and SSL/TLS protocol versions, including RC4). The new UseStrongCryptoAlgorithms property was implemented in both the client and the server components.
CertificateStore - added the ability to load the certificate chain for the given certificate.
The HTTP PATCH command was implemented.
SMIME - new strong encryption and signature algorithms were added.
SMIME - the new Config property allows you to change the used cryptographic algorithms and other cryptographic parameters. The updated version of the component allows you to obtain an information about the used cryptographic algorithms, the signing key length, and digital certificates before verifying and decrypting the message.
The updated Encryptor component allows you to extract the used cryptographic algorithms, key length, and other information from the protected file. A set of overloaded methods was added.
The IMAP4 UTF7 name encoding was added. The implemented feature allows you to use international mailbox names with both the client and server components.
IMAP4 client - support for multiple untagged SEARCH responses was added.
IMAP4 client - the UnseenMessages property was removed from the TclImap4MailBoxInfo class.
The updated OAuth component allows you to refresh the authorization token and specify custom request fields while negotiating with the OAUTH server.
BounceChecker - The updated component extracts all email addresses from the message by using of the regular expressions syntax, analyzes the message content, and indicates, if the message contains the non-delivery report.
The Encode/Decode methods of the Encoder component were renamed and reorganized in order to improve the interface and usability.
SSH engine - the support for the Global Request Handling was implemented.
New demos for Dkim and GMail were added to the .NET edition of the Clever Internet Suite.

Implemented Features

Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3 and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests in JSON format.
Royalty free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.
International domain names for HTTP components.
The ability to verify the client and server credentials and certificates.
HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - three new TLS modes - implicit, explicit and automatic. STARTTLS command support.
NTLM authentication for all mail clients was added: POP3, SMTP, IMAP. When the UseSasl option enabled, these components automatically determine and use the most secured authentication method.
POP3, SMTP clients - working with GMAIL service with OAUTH 2.0 authorization.
Fully functional HTTP / HTTPS client.
FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions. FTP FXP (Site to Site) transfer mode.
FTP Server - custom events for all operations with files and directories on the server, the possibility to customize all file-related operations including compressing and uncompressing functionality. Virtual File System.
Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
Creating self-signed certificates, working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
Creating and parsing email messages in any format with file Attachments and Embedded pictures, the ability to determine the attachment size before saving it to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP and CRAM-MD5 authentication methods, File System message storage.
POP3, SMTP and IMAP4 clients - SSL / TLS support, NTLM and CRAM-MD5 authentication methods.
Web DAV - manages remote files and folders on a web server.
DNS Query - queries a DNS server for records. This component can retrieve the mail exchange domain (MX records), resolve the host IP, retrieve the information about name servers and many other information from the DNS server.
DNS Server - implements fully functional DNS server and allows you to both manage handed DNS zones and cache non-authoritative DNS records.
SMTP Relay - implements a SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - parse HTML Tags: links, images, tables, meta tags and many more.
GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
RSS client - is used for creating, retrieving, and editing RSS feeds.
Email validation components - allow you to validate recipients email addresses, mailbox availability and also handle bounced emails.
Trace Logger - provides logging functionality for storing debug information and tracing your code.

Please visit our site Clever Components to learn more about our products. Feel free to join our Mail List Subscription and stay tuned.

Fixed bugs

SSH engine - the "Signature Invalid" error was fixed.
SSH engine - the connection unexpectedly closed after sending the ssh-userauth request - fixed.
SSH engine - the key exchange algorithm was fixed.
SFTP - the HMAC-SHA2 algorithm implementation was fixed.
The e-mail address folding was fixed.
Installer - the problems when installing the product on PC with the mapped Common and User Documents folder to a Network drive were fixed.

IpV6 Notes

Currently, the following components support IpV6 with some restrictions:

Socks5 firewall - supports IpV4 only;
Ftp client and FtpServer - data connection uses IpV4 protocol only.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please contact Customer Portal

Clever Internet .NET Suite version 9.1 overview

Wed, 27 Dec 2017 10:56:18 GMT

Download
Purchase
Product Description

The Clever Internet .NET Suite components allow you to compose and parse messages in MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3 and IMAP clients allow you to send and retrieve email messages over the Internet.

All server components represent the fully functional multithreaded servers with the ability to customize the connection settings, support the most common protocols extensions.

Using the Clever Internet Suite you can add instant SSL / TLS / SSH security to your Internet applications and implement many useful Internet-related features:

Downloading, uploading and submitting of the Internet-resources.
Sending and receiving e-mail messages with DKIM signatures.
HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server solutions.
secure channel with X509 certificates support.
OAUTH 2.0 authorization and many more.

What's new in version 9.1

Supported Visual Studio versions: 2010, 2012, 2013, 2015 and 2017. Minimal .NET Framework version is 4.0.
Visual Studio 2005 and 2008 are no longer supported. The .NET Compact Framework 2.0 and 3.5 are no longer supported as well.
New OAUTH component - support for many popular services online, including GMail, Facebook, Twitter, YandexDisk and many more. LocalWebServer, WebApplication and EnterCodeForm OAUTH protocol end-points are supported.
New SFTP client component was implemented. The following features are supported: the user-password authorization, the public key authorization, download/upload files, manage SFTP directories and many more.
New DKIM component was introduced - the ability to sign and verify mail messages, generate DKIM keys and DNS txt records for these keys and many more.
New HTTP server component allows you to run a single-threaded listening connection, receive requests and send responses to connected HTTP client.
New Encryptor component was implemented. This component allows you to encrypt/decrypt files, text or binary data, sign with digital signature algorithms and store the enveloped data to a file or stream, verify digital signatures for existing enveloped data and many more. X509 cerificates are supported.
New CryptEncoder class allows you to encode/decode cryptographic keys, certificates and other data in PEM and SSH2 formats. The algorithm allows you to decrypt encrypted SSH2 private keys as well.
MailMessage - RFC 5987 support added, file names in UTF-8 format implemented.

Updated components

The OAUTH support for IMAP4 and SMTP components. The new functionality allows you to communicate with GMAIL and other services that support the OAUTH 2.0 authorization.
HTTP client - a set of new features were introduced: the OAUTH authorization support, "100 Continue" support, more overloaded methods for sending requests of different types were implemented.
WebDAV - the OAUTH support was added.
FTP client - UTF-8 support was addded. Starting from now, you can use UTF8-encoded file names, specify your own character encoding and use the encoding auto-detection mode. New DataHost property allows you to connect to the FTP service over NAT or a firewall in non-passive mode.
FTP server - new extension methods were implemented: MDTM, FEAT, OPTS. Starting from now, you can specify a list of supported FTP server extensions by using of the Extensions component property.
DNS client and server - the IPv6 support was implemented, AAAA records were added.
DnsQuery component - the RootNameServers property was added. New functionality allows you to lookup DNS records starting from the root server list.
The Encoder component was improved - a set of overloaded methods for text encoding/decoding was added; new AllowEsc property enables the component to process escape symbols.
The AsyncClient component was improved. The AsyncError event was introduced.
HttpRequest was redesigned and improved.
The MailMessage component was improved. The List-Unsubscribe support was added. DKIM signatures were implemented. The header parsing algorithm was fixed. The Calendar body type was added. A set of helper methods that simplify the body access was implemented: MessageText, Calendar, Images, Attachments.
The SMimeMessage component was improved as well. The single GetCertificate event was replaced with two new events: GetSigningCertificate and GetEncryptionCertificate. This functionality allows you to easily specify different certificates for both signing and encrypting/verifying and decrypting procedures.

Other changes

TLS1.1 and TLS1.2 security algorithms were added.
International domain names (IDN) for HTTP and email components.
The DataStringCollection class was removed. The code was replaced with the StringCollectionEx advanced collection. New code simplifies the usage of text data from this collection and improves the performance.
The socket engine was redesigned and improved. The class inheritance for basic TcpClient and TcpServer components was changed in order to improve the code reuse and better understanding the library structure.
The certificate management was improved, new certificate properties were added: certificate Thumbprint, Subject Key Identifier; more functions for searching certificates were implemented: FindByEmail, FindBySerialNo, etc. The working with certificate keys was improved as well.
A set of cryptographic classes were added: Cipher (and its descendants), Hash, Mac, KeyExchange, Signature and many more.

Clever Internet .NET Suite features

Simple HTTP Server component.
Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3 and IMAP4 protocols.
TLS / SSL support for all protocol components.
SSH support for the SFTP protocol.
Send / receive HTTP requests in JSON format.
Royalty free licensing. Free Unlimited Email support.
Fully-indexed help documentation. C#, VB.NET and ASP.NET demos code.
International domain names for HTTP components.
The ability to verify the client and server credentials and certificates.
HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authorization.
FTP, SMTP, POP3, IMAP, NNTP clients - three new TLS modes - implicit, explicit and automatic. STARTTLS command support.
NTLM authentication for all mail clients was added: POP3, SMTP, IMAP. When the UseSasl option enabled, these components automatically determine and use the most secured authentication method.
POP3, SMTP clients - working with GMAIL service with OAUTH 2.0 authorization.
Fully functional HTTP / HTTPS client.
FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions. FTP FXP (Site to Site) transfer mode.
FTP Server - custom events for all operations with files and directories on the server, the possibility to customize all file-related operations including compressing and uncompressing functionality. Virtual File System.
Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
Creating self-signed certificates, working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
Creating and parsing email messages in any format with file Attachments and Embedded pictures, the ability to determine the attachment size before saving it to the disk.
POP3, SMTP, IMAP4 servers - SSL / TLS support, NTLM, APOP and CRAM-MD5 authentication methods, File System message storage.
POP3, SMTP and IMAP4 clients - SSL / TLS support, NTLM and CRAM-MD5 authentication methods.
Web DAV - manages remote files and folders on a web server.
DNS Query - queries a DNS server for records. This component can retrieve the mail exchange domain (MX records), resolve the host IP, retrieve the information about name servers and many other information from the DNS server.
DNS Server - implements fully functional DNS server and allows you to both manage handed DNS zones and cache non-authoritative DNS records.
SMTP Relay - implements a SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - parse HTML Tags: links, images, tables, meta tags and many more.
GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
RSS client - is used for creating, retrieving, and editing RSS feeds.
Email validation components - allow you to validate recipients email addresses, mailbox availability and also handle bounced emails.
Trace Logger - provides logging functionality for storing debug information and tracing your code.

Please visit our site Clever Components to learn more about our products. Feel free to join our Mail List Subscription and stay tuned.

Fixed bugs

The HttpAuthorization is not thread-safe - fixed.
SFTP file permissions parsing errors were fixed, IsDir file attribute works correctly.
Installer runs with errors on Windows XP - fixed.
TLS engine - INCOMPLETE_MESSAGE error occurred - fixed.
RSA key for RSA-SHA-256 algorithm was imported incorrectly - fixed.
SFTP large directory listing errors, the problems with receiving of incloplete SSH packets was fixed.

IpV6 Notes

Currently, the following components support IpV6 with some restrictions:

Socks5 firewall - supports IpV4 only;
Ftp client and FtpServer - data connection uses IpV4 protocol only.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

For more details please contact http://portal.clevercomponents.com

Clever Internet .NET Suite version 7.0 overview

Fri, 05 Feb 2010 00:03:32 GMT

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Purchase
Product Description

The suite of the Clever Internet components presents the most efficient and convenient way of accessing the Internet resources from your applications.
Using the Clever Internet .NET Suite you can add instant SSL / TLS security to your Internet applications and implement many useful Internet-related features:

Downloading, uploading and submitting of the Internet-resources. Sending and receiving MIME messages. HTTP, FTP, SMTP, POP3, IMAP and NNTP client / server solutions. SSL / TLS channel with digital certificates support.

What's new

Visual Studio 2010 beta support was added.
MS Visual Studio 2008 and .NET Framework 3.5 support.
Windows CE and .NET Compact Framework 3.5 support - Beta, see notes below this document.
TcpCommandServer - the ability to add custom commands was implemented.
DNS Server - new Zone Manager allows you to create and modify zone files on the disk.
ServerGuard component was implemented - brute-force attack blocking, connection flood detecting and many more.
Int64 support was implemented in all client and server components.
IMAP Server component was implemented.
NNTP Server component was implemented.
Certificate management was improved - creating certificates, certifcate requests, public/private keys.
EPP client/server components were added.
AsyncClient - an asynchronous TCP client component.
EmailValidator and BounceChecker were added.
New CookieManager component was added.
Rss component - is used for creating, retrieving, and editing RSS feeds.
UdpClient, UdpServer components.
Custom TCP client/server solution with SSL support.
Server components improvements - local binding, server protection, session timeout.
SSL improvements - the ability to require client certificate was added, multiple client certificates support was implemented.
TCP server - the ability to use non-ascii commands was added.
The Keep-alive feature for all TCP clients.
The session timeout feature is implemented in TCP server components.

Implemented Features

Complete Client / Server solutions with full SSL / TLS support for FTP, SMTP, POP3 and IMAP4 protocols.
TLS / SSL support for all protocol components.
The ability to verify the client and server credential and certificates.
HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authentication were implemented.
FTP, SMTP, POP3, IMAP, NNTP clients - three new TLS modes - implicit, explicit and automatic. STARTTLS command support.
NTLM authentication for all mail clients was added: POP3, SMTP, IMAP. When the UseSasl option enabled, these components automatically determine and use the most secured authentication method.
POP3, SMTP clients - working with GMAIL service.
Fully functional HTTP / HTTPS client.
FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions were added. FTP FXP (Site to Site) transfer mode
FTP Server - custom events for all operations with files and directories on the server, the possibility to customize all file-related operations including compressing and uncompressing functionality. Virtual File System
Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
CertManager - creating self-signed certificates, working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
MailMessage - allows you to create and parse messages in any email format with file Attachments and Embedded pictures, the ability to determine the attachment size before saving it to the disk.
POP3 Server - SSL / TLS support, NTLM, APOP and CRAM-MD5 authentication methods, File System message storage were implemented.
POP3 Client - SSL / TLS support, NTLM and CRAM-MD5 authentication methods were implemented.
SMTP Server - SSL / TLS support, NTLM, USER/PASS and CRAM-MD5 authentication methods, File System message storage were implemented.
IMAP Client - obtaining the server Capability list; the FETCH command was improved. Now this command uses the BODY[] parameter instead of RFC822 and does not change implicitly the message /Seen flag in the same way as MS Outlook does.
IMAP Server - SSL / TLS support, NTLM and CRAM-MD5 authentication methods, shared folders. File System message storage were implemented.
The whole socket engine was re-designed. The data transferring speed was dramatically improved.
A set of new demo programs were included in to the Clever Internet .NET Suite installation and also available for downloading separately.
Web DAV - manages remote files and folders on a web server.
DNS Query - queries a DNS server for records. This component can retrieve the mail exchange domain (MX records), resolve the host IP, retrieve the information about name servers and many other information from the DNS server.
DNS Server - implements fully functional DNS server and allows you to both manage handed DNS zones and cache non-authoritative DNS records.
SMTP Relay - implements a SMTP Relay agent. With SMTP relay, a mail message may pass through a number of intermediate relay or gateway hosts on its path from sender to recipient.
HTML Parser - parse HTML Tags: links, images, tables, meta tags and many more.
GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
RSS client - is used for creating, retrieving, and editing RSS feeds.
Two new Email validation components - allow you to validate recipienta_Ts email address, mailbox availability and also handle bounce emails.
Trace Logger - provides logging functionality for storing debug information and tracing your code.

Fixed bugs

FTP Client - "certificate required" error occured when connecting to some FTP SSL servers - fixed.
FTP Server - unhandled exception occured when closing client connection - fixed.
MailMessage - message parsing hangs when decoding From: header field - fixed.
SMTP Client and SMTP Relay - error occured when parsing server capability list with empty authentication method - fixed.
HTTP Client - some fixes in "chunked" content parsing.
POP3 Client - the Progress event was not raised while receiving small-size messages - fixed.
POP3 Client - the Progress event parameters were invalid (BytesProceed > TotalBytes) - fixed.
FTP Server - sometimes the ConnectionClosed event was not raised - fixed.
FTP Server - there were problems with using relative paths, '..' and paths over the root folder - fixed.
Demo version did not work in .NET Framework 2.0 without preinstalled Framework 1.0 - fixed.
MailMessage - email address parser was fixed.
Encoder - base64 decoding fixes was added.
FTP directory parser for unix - the date was parsed incorrectly if there is no year specified - fixed.
FtpServer.Stop stops listening on port 21 but it does not close the existing connections - fixed.
FTP client, DataProtection, PassiveMode, UseTls are assigned incorrectly in design-time - fixed.
SmtpServer - it is impossible to send the AUTH command with the telnet client - fixed.
HtmlParser - it is impossible to parse HTML tag attributes which are not separated by spaces - fixed.
MailMessage.EncodeField - there are problems with encoding of long attachment file names - fixed.
MailMessage - the Progress event works incorrectly when the component encodes the alternative bodies - fixed.
MailMessage - inline attachments with Content-Type=unknown are parsed incorrectly - fixed.
Imap4Server - the body structure command works incorrectly - fixed.
FtpFileHandler - the server does not raise an error when creating new directory with existing name - fixed.
Http - the ContentType header with trailing white spaces is extracted incorrectly - fixed.
HttpRequest - fix for building of the HTTP request by HTML.
MailMessage - the Date header field is encoded incorrectly - fixed;
Bodies and sub-bodies of multipart messages are extracted incorrectly - fixed.
TcpCommandServer - the problem with sending of long (which are longer than BatchSize value) lines was fixed.
The server stopped accepting new commands after exception in user connection - fixed.

Starting from now the HttpMail component was removed from the library. This component handled Microsoft Hotmail protocol. Since this protocol is no longer supported by Microsoft, we decided to remove this component from the Clever Internet Suite. If you want to still use the WebDAV technology, please consider migrating to the WebDAV component.

Compact Framework notes

This is a first edition of the Clever Internet .NET suite with Windows CE support. Currently not all functionality is available in Compact Framework edition. We are planning to implement it in the nearest future. Please feel free to notify us about any problems and ask us any questions you will have. A list of restrictions can be seen below:

CertificateStore component is not available in Compact Framework edition.
SmimeMessage component is not available.
Connecting via SSL / TLS channel is not available.
NTLM authentication temporarily disabled in both client and server components.
The installer automatically registers Clever Internet .NET Suite Compact Framework assemblies in GAC, but it does not install components to Visual Studio Toolbox.
Clever Internet .NET Suite Demos are not yet converted to Windows CE. It is provided for studying purposes.

The Clever Internet Suite components allow you to compose / parse messages in alternative MIME format with multiple file attachments, build and send Web Form POST requests and many other features.

The SMTP, POP3, IMAP and HTTP Mail clients allow you to send and retrieve email messages over the Internet.

The Clever Internet .NET Suite components provide the complete Client / Server solutions for the following Internet protocols: SMTP, POP3, IMAP4, FTP and EPP.

All server components represent the fully functional multithreaded servers with an ability to customize the connection settings, supports the most common protocols extensions.

Components can connect to the a server via the Secure Socket Layer (SSL / TLS) channel, and capable of encoding / decoding the message content, sending file attachments and many other useful features.

Also a set of additional classes and components are available: Mail Message, HTTP Request, GZip compressor, MIME Encoder, S/MIME message, HTML Parser. All these component make the application development process easy and clean. You can use these components separately from the main protocol components with any other library and even with your own socket implementation.

Demo version information

Free Demo version of Clever Internet .NET Suite is available for evaluation purposes only. Demo version displays trial warning messages if components are used in GUI applications and raises trial exceptions after several times of using it in non-GUI applications and services, all other features are completely available.

Coming Soon

The following new features will be implemented:

Server components for HTTP protocol.
FTP SSH support.
Existing components improvements.
Support for ICMP, LDAP, ACAP and other protocols.