MailKit 2.14.0

MailKit is an Open Source cross-platform .NET mail-client library that is based on MimeKit and optimized for mobile devices. Features include: * HTTP, Socks4, Socks4a and Socks5 proxy support. * SASL Authentication via CRAM-MD5, DIGEST-MD5, LOGIN, NTLM, OAUTHBEARER, PLAIN, SCRAM-SHA-1, SCRAM-SHA-256, SCRAM-SHA-512 and XOAUTH2. * A fully-cancellable SmtpClient with support for STARTTLS, 8BITMIME, BINARYMIME, ENHANCEDSTATUSCODES, SIZE, DSN, PIPELINING and SMTPUTF8. * A fully-cancellable Pop3Client with support for STLS, UIDL, APOP, PIPELINING, UTF8, and LANG. * A fully-cancellable ImapClient with support for ACL, QUOTA, LITERAL+, IDLE, NAMESPACE, ID, CHILDREN, LOGINDISABLED, STARTTLS, MULTIAPPEND, UNSELECT, UIDPLUS, CONDSTORE, ESEARCH, SASL-IR, COMPRESS, WITHIN, ENABLE, QRESYNC, SORT, THREAD, ANNOTATE, LIST-EXTENDED, ESORT, METADATA / METADATA-SERVER, NOTIFY, FILTERS, LIST-STATUS, SORT=DISPLAY, SPECIAL-USE / CREATE-SPECIAL-USE, SEARCH=FUZZY, MOVE, UTF8=ACCEPT / UTF8=ONLY, LITERAL-, APPENDLIMIT, STATUS=SIZE, OBJECTID, REPLACE, SAVEDATE, XLIST, and X-GM-EXT1. * Client-side sorting and threading of messages (the Ordinal Subject and the Jamie Zawinski threading algorithms are supported). * Asynchronous versions of all methods that hit the network. * S/MIME, OpenPGP, DKIM and ARC support via MimeKit. * Microsoft TNEF support via MimeKit.

No packages depend on MailKit.

  • Added support for logging timestamps in the ProtocolLogger (see the LogTimestamps and TimestampFormat properties on ProtocolLogger).
  • Added support for automatically redacting user credentials in protocol logs. To enable this, set the ProtocolLogger.RedactSecrets property to true. (issue #1174)
  • Added the GetMessageSizeAsync() method to the IMailSpool interface. (issue #1233)
  • Added a work-around to the IMAP INTERNALDATE parser to handle invalid dates such as "00-Jan-0000 00:00:00 +0000" which appears in Domino IMAP server responses, likely when the INTERNALDATE value is uninitialized in the database. (issue #1236)
  • Make sure to dispose X509Certificates in .NET >= 4.6.
  • Re-added NTLM as one of the default supported SASL mechanisms.
  • Updated GMail SSL certificate serial numbers and fingerprints.

API Changes Since 2.0.x:

  • Obsoleted SearchQuery.HasCustomFlags() and SearchQuery.DoesNotHaveCustomFlags(). These are now SearchQuery.HasKeywords() and SearchQuery.NotKeywords(), respectively.
  • Obsoleted SearchQuery.DoesNotHaveFlags() in favor of SearchQuery.NotFlags().
  • Obsoleted the IMessageSummary.UserFlags property in favor of IMessageSummary.Keywords.
  • Obsoleted the MessageFlagsChangedEventArgs.UserFlags property in favor of MessageFlagsChangedEventArgs.Keywords.
  • All IMailFolder.Fetch and IMailFolder.FetchAsync methods that took a HashSet userFlags argument now take an IEnumerable keywords argument. Note: this only affects you if your code used named method parameters (e.g. userFlags: myUserFlags).

Note to users upgrading from MailKit 1.x:

In order to authenticate using the XOAUTH2 SASL mechanism, you must now use the following approach:

client.Authenticate (new SaslMechanismOAuth2 (username, auth_token));

.NET Framework 4.5

.NET Framework 4.6

.NET Framework 4.7

.NET Framework 4.8

.NET 5.0

.NET Standard 2.0

.NET Standard 2.1

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