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Clever Internet .NET Suite Version History

VCL Edition | .NET Edition | ActiveX Edition

Version 11.0.951.0 (January 19, 2024)

Implemented Features:

  • The improved MailMessage component allows you to specify a user-defined name for any attached file or embedded resource.
  • 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.

Fixed Bugs:

  • MIME header encoding was fixed for Quoted-Printable and RFC-2047 fields.
  • Minor fixes and improvements.

Version 10.2.948.0 (April 12, 2022)

Implemented Features:

  • 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 following members were renamed: CRLFlags to CertChainFlags, RevocationFlags to CertificateChainVerifyFlags.
  • The library provides the full Visual Studio 2022 support.

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.

Version 10.1.943.0 (October 14, 2021)

Implemented Features:

  • 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.

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.

Version 9.6.930.0 (October 27, 2020)

Implemented Features:

  • Minor fixes and improvements.

Version 9.6.929.0 (August 18, 2020)

Implemented Features:

  • IPv6 support was added to the SOCKS5 implementation.
  • Other minor fixes and improvements.

Fixed Bugs:

  • SFTP Client- GetFile at a specific position didn't work properly - fixed.
  • An SSPI error occurred when closing TLS connection - fixed.
  • HTTP Client - files downloaded incorrectly in the chunked mode - fixed.
  • HTTP redirects worked incorrectly for target URLs without a protocol part - fixed.

Version 9.6.928.0 (June 4, 2020)

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.

Version 9.5.927.0 (March 10, 2020)

Implemented Features:

  • 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.

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.

Version 9.4.926.0 (September 9, 2019)

Implemented Features:

  • 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 HTTP proxy support was added to all protocols, including SFTP.
  • Visual Studio 2019 support was introduced.
  • 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.

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.

Version 9.3.925.0 (February 4, 2019)

Implemented Features:

  • 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.

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.

Version 9.2.924.0 (October 11, 2018)

Implemented Features:

  • 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.

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.

Version 9.1.924.0 (November 24, 2017)

Implemented Features:

  • MailMessage - RFC 5987 support added, file names in UTF-8 format implemented.

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.

Version 9.0.923.0 (September 12, 2017)

Implemented Features:

  • 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.
  • 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.
  • 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.

Fixed Bugs:

  • MailMessage - the header fields with mixed encoding style were decoded incorrectly - fixed.
  • DNS Server - some fixes in the server engine.
  • IMAP client - the AppendMessage method did not work with GMail IMAP - fixed.
  • FTP client - the file names with international symbols were obtained incorrectly - fixed.
  • HTTP client - the resource URLs were not escaped - fixed.
  • All HTTP clients (Http, WebDav)- the components incorrectly provided a list of supported compression algorithms - fixed.
  • FTP server - the directory navigation worked incorrectly in case if the root folder is the root of the disk (e.g, c:\).
    The connected client cannot get back to the root folder after navigating to a subfolder - fixed.

Version 7.8.432.0 (May 27, 2013)

  • The error with long attachment names was fixed in the MailMessage component: the previous version of the component inserted extra ";" symbols to the file name.
  • Minor fixes and improvements.

Version 7.7.431.2 (April 15, 2013)

Implemented Features:

  • Http client - the REST service support was improved. The updated component handles 4xx and 5xx server responses without exceptions;
  • Smtp client - skipping of invalid recipients while sending emails.

Fixed Bugs:

  • DnsQuery - MX hosts were sorted incorrectly - fixed;
  • SmtpServer - Unexpected exception while accepting of emails for delivering - fixed;
  • MailMessage - long filenames of email attachments were extracted incorrectly (extra semi-colon was added) - fixed.

Version 7.7.431.0 (March 14, 2013)

Implemented Features:

  • Translator - new methods for encoding/decoding were added;
  • 64bit binaries are included to the installation;
  • Encoder improvements - new methods were added (.NET).

Fixed Bugs:

  • FtpFileHandler - it is impossible to use the root drive path for the RootDir property - fixed;
  • HttpRequest - the form field canonicalization worked incorrectly with escape characters - fixed.

Version 7.6.307.0 (November 5, 2012)

Implemented Features:

  • Visual Studio 2012 support was added;
  • Microsoft .NET Frameword 4.5;
  • 64-bit platform support improvements.

Fixed Bugs:

  • Minor fixes and improvements.

Version 7.5.303.2 (May 17, 2012)

Implemented Features:

  • The working with GMail service was improved: GMail IMAP support.

Fixed Bugs:

  • The Imap4 .NET client hangs in SSL mode when closing the connection - fixed;
  • TCP-based .NET clients (IMAP, POP3, SMTP, FTP, HTTP) raised system exception when connecting via SSL and running in 64-bit mode - fixed.

Version 7.5.303.0 (March 20, 2012)

Implemented Features:

  • TLS1.1 and TLS1.2 support was implemented;
  • TCP client components - the Close method was improved. Starting from now, this method cancels the current Network communication immediately;
  • The MailTimeToDateTime was renamed to MimeTimeToDateTime and moved to the Utils unit;
  • EmailValidator - the ability to get the exception details (both the error message and code) was implemented;
  • HTTP client - the component automatically reconnects when the server has closed the connection;
  • Google Calendar support was implemented;
  • HtmlParser - the Title property is extracted regardless of the ParseMethod value;
  • TCP server components - The ConnectionAccepted event was improved. It allows you to cancel the session, send user defined response to the client;
  • DnsQuery - the ability to automatically determine the DNS server name was added;
  • DnsQuery - IPv6 addressing was implemented.

Fixed Bugs:

  • Windows XP Embedded support was improved, the problems with code page 20127 were fixed;
  • Minor fixes and improvements.

Version 7.3.227.0 (May 2, 2011)

Implemented Features:

  • Full IpV6 support was implemented. You can set default address family by using of the IsIpV6Preferred variable (False, by default). See notes below;
  • Http - HeaderReceived event was added. This event allows you to cancel request and reset the connection;
  • MailMessage - encoding of email addresses was improved;
  • Smtp - receiving an information about message size limit;
  • Smtp - starting from now you can send messages with long text lines which are greater than BatchSize property;
  • SmtpServer - message size limit was implemented;
  • FtpServer - PutFileReady event was added. New event allows you to access received file via stream;
  • Encoder - displaying of progress information was improved;
  • BounceChecker - Minor fixes and improvements;
  • Socket engine - minor improvements and fixes; new classes were added: IpAddressUtils and HostResolver;
  • Minor fixes and improvements.

Fixed Bugs:

  • DnsQuery - AAAA Ipv6 records were extracted incorrectly - fixed;
  • HtmlParser - parsing of closing tags worked incorrectly - fixed;
  • MailMessage - charset is emptied when parsing of simple text email - fixed.

IpV6 Notes:

Currently, the following components support IpV6 with some restrictions:

  • DnsQuery - can resolve only A records, you can still get AAAA records from the Response property;
  • Socks5 firewall - supports IpV4 only;
  • Ftp client and FtpServer - data connection uses IpV4 protocol only.

Version 7.2.180.0 (October 18, 2010)

Implemented Features:

  • Visual Studio 2010 and .NET Framework 4.0 support were 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;
  • SmtpServer, SmtpFileHandler - relaying to multiple recipients was improved;
  • Pop3 - obtaining of mailbox size was implemented;
  • MailMessage - new AttachmentSaved event allows saving attachments to any stream object;
  • S/MIME Message - the working with certificates was improved;
  • DnsFileHandler - making of zone files was added;
  • Minor fixes and improvements.

Fixed Bugs:

  • The progress information was provided incorrectly when transferring large amount of data - fixed. Affected classes: HttpRequest, NetworkStream, ChunkedStream, StreamUtils, TlsNetworkStream, BinaryData;
  • FTP Server - session timer closed the command connection as inactive while transferring files - fixed;
  • SSPI FTP Server - the data connection was closed incorrectly when using in SSL mode - fixed. The problem was reproduced when connecting with FileZilla 3.x;
  • UDP-based servers did not work on Windows 7 - fixed;
  • S/MIME Message - both Subject and From parameters were cleaned when decoding encrypted message - fixed;
  • EPP client - the "null reference..." exception occurred when connecting with empty RequestObjects or RequestExtensions properties - fixed;
  • FTP Client - "certificate required" error occured when connecting to some FTP SSL servers - fixed;
  • Http - the ContentType header with trailing white spaces is extracted incorrectly - fixed.

Version 7.1.54.89 (April 8, 2010)

Implemented Features:

  • Visual Studio 2010 support was added.
  • AsyncClient - new ReadData and WriteData methods were implemented.
  • DnsFileHandler - new Zone Manager allows you to create and modify zone files on the disk.
  • Http - three new overloaded Get methods were added.
    Starting from now the Get methods allow you to substitute the HTTP request component.
    Composing of query strings with TclHttpRequest component was implemented.
  • Rss - new Insert method was added to the RssItemList collection.
  • TcpCommandServer - the ability to add user-defined commands was implemented:
    TcpCommandList - AddCustomCommand method was added;
    TcpCustomCommandInfo was added;
    CustomCommand event was implemented.
  • TcpServer - CloseConnection method was added.
  • StringUtils - new ProduceQuotedWordsString method was implemented.

Fixed Bugs:

  • 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.

Version 7.0.54.0 (September 8, 2009)

Implemented Features:

  • 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.
  • ServerGuard component was implemented - brute-force attack blocking, connection flood detecting and many more.
  • Int64 support was implemented in all client and server components.
  • SOCKS firewall support was added.
  • IMAP Server component was implemented.
  • NNTP Server component was implemented.
  • DNS 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.

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.

Version 7.0.48.0 Beta (1 September 2008)

Implemented Features:

  • 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.
  • IMAP Server component was implemented.
  • EPP client/server components were added.
  • 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.
  • All client and server components were redesigned and improved.
  • POP3 & SMTP servers - LoginAuthenticate, AuthAuthenticate events were replaced with AuthenticateEvent.
  • SMTP server - SmtpUserAccountItem was replaced with MailUserAccountItem for all three servers: Imap, Pop3 and Smtp.
  • Certificate management was improved - creating certificates, certifcate requests, public/private keys.
  • CertificateStore - CertificateAddSelfSigned method was replaced with CreateSelfSigned.
  • CertificateStore - LoadFromSystemStore was replaced with Open.
  • All email clients - UseSPA property was renamed to UseSasl.
  • Encoder component - some methods were renamed and improved.
  • Connection class - PeerName property was removed, use PeerIP together with DnsQuery component instead.
  • Pop3 client - Message numbers begin from 1.

Fixed Bugs:

  • MailMessage - email address parser was fixed.
  • Encoder - base64 decoding fixes was added.
  • POP3 client - the component hangs when connecting to a server on multi-homed PC - fixed.
  • Unmanaged memory leaks in WebDAV client - fixed.
  • Unmanaged memory leaks in TcpClient client - fixed.

Version 6.1.33.8 (1 September 2008)

Implemented Features:

  • MS Visual Studio 2008 support.

Fixed Bugs:

  • Some fixes in socket engine.

Version 6.1.33.0 (28 May 2007)

Implemented Features:

  • ServerGuard component was implemented - brute-force attack blocking, connection flood detecting and many more.
  • Int64 support was implemented in all client and server components.
  • FTP, POP3, SMTP servers - session timeout was added.
  • FTP, POP3, SMTP servers - vulnerability protection was implemented.
  • FTP Server - data port protection was added, password protection was implemented.
  • FTP Server - two new events were added: PutFileDone, GetFileDone.
  • FTP Server - the ability to change the user account object within the Authenticate event handler was added.
  • POP3 Server - closing the connection after "maildrop already locked" error.
  • WebDAV - the following new methods were added: RemoveProperty, GetProperty, SetProperty.

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.

Version 6.0.26.5 (14 March 2007)

Implemented Features:

  • FTP Server: path navigation improvements, handling of relative paths with ".." was implemented.
  • FTP Server: two new events which indicate file downloading/uploading completion were added.
  • SMTP, POP3, FTP servers: the UserName parameter was added to all authentication events.

Fixed Bugs:

  • FTP Server: path navigation problems, it was possible to navigate to a folder above the root - fixed.
  • Mail Message: the Message-ID generator was fixed.
  • POP3, SMTP clients: problems with receiving emails which do not specify message encoding - fixed.

Version 6.0.26.0 (8 February 2007)

Implemented Features:

  • HTTP Client - HTTPS (SSL / TLS) protocol, NTLM and Negotiate authentication were implemented.
  • FTP Server - SSL / TLS support, Virtual File System were implemented.
  • FTP Client - SSL / TLS support, the ability to set FTP file attributes and permissions were added.
  • 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.
  • SMTP Client - SSL / TLS support and NTLM authentication method were added.
  • IMAP Client - SSL / TLS support, NTLM authentication method, obtaingin the server Capability list were implemented, the FETCH command was improved.
  • NNTP Client - SSL / TLS support was added.
  • WebDAV Client - manages remote files and folders on a web server.
  • HTML Parser - the ability to parse HTML Meta Tags was added: Title, Author, Description, Keywords, etc.
  • GZip compressor component - provides compressing / uncompressing feature when transmitting data over the Internet, storing data in to a file, database and many more.
  • Trace Logger - provides logging functionality for storing debug information and tracing your code.

Fixed Bugs:

  • HTTP Client - problems with changing the request method from POST to GET when redirecting to another location were fixed.
  • Http Client - the ReceiveProgress event did not work on small-size resources - fixed.
  • SMTP Client - HELO / EHLO mode was improved.
  • MailMessage - the messages with international texts were decoded incorrectly (the character set field was ignored) - fixed.
  • MailMessage - creating attachments with 'audio' and 'video' content-type.
  • VS 2005 toolbox registration was implemented.

Version 5.0.19.0 (20 July 2006)

Implemented Features:

  • Network solutions for HTTP, FTP, SMTP, POP3, NNTP, IMAP4 and DNS protocols.
  • FTP FXP (Site to Site) transfer mode.
  • Events for implementing the mail sending / receiving progress with the ability to interrupt the process.
  • Working with X.509 certificates was improved: creating self-signed certificates, installing and uninstalling user certificates.
  • Working with any type of certificate store including current user stores, local machine stores, file stores, registry stores and so on.
  • A set of new demo programs was included in to the Clever Internet Suite installation and also available for downloading separately.
  • The following new components were added: DNS Query, SMTP Relay, SMTP Client, POP3 Client, IMAP Client, NNTP Client, HTTP Client, HTTP Mail Client and FTP Client.
  • MailMessage - the ability to determine the attachment size before saving it to the disk. See both EncodedSize and EncodedLines MessageBody properties.

Fixed Bugs:

  • MailMessage - the MessageID is not substituted for new messages, this causes problems with receiving such messages with HotMail client - fixed.
  • MailMessage - the time part of the Date field is extracted incorrectly - fixed.
  • MailMessage, HttpRequest - ExtraFields - the duplicated fields are parsed incorrectly - fixed.
  • MailMessage component - attachments with empty Content-Disposition field have empty FileName property - fixed.
  • MailMessage component - the Encoding field was not filled automatically for text bodies when combining the mail message with BuildMessage functions - fixed.
  • HttpRequest - canonicalization for escape-symbols works incorrectly - fixed.
  • HttpRequest component - the Boundary value was incorrect when sending multipart HTTP requests - fixed.
  • Encoder - the Quoted Printable encoding works incorrectly with spaces when encoding / decoding email header fields - fixed.

Version 4.0.11.1 (18 August 2004)

Implemented Features:

  • Encoder component - Encodes / decodes any data using Base64, UUE and Quoted Printable methods with progress information.
  • HtmlParser component - Parses HTML page and extracts the URL, FORM and other HTML tag collections with their attributes.
  • MessageParser component - Represents the mail message data and the methods for its parsing and combining. This component allows you to compose / parse messages in alternative MIME format with multiple file attachments.
  • RequestBuilder component - Composes HTTP requests in both design-time and run-time modes.
  • SmimeParser component - Encrypts and decrypts mail messages with the public key cryptography and X.509 digital certificates.

 

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