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Fork
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6.9k
Code
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5
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3
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Commits on Oct 4, 2026
IMAP4rev2 improvements and a unified ImapClient.Enable() API
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Move literal length parsing out of ByteArrayBuilder into ImapStream
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Use EncodedName for IMAP parent folder lookups
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Use MimeKit's ParseUtils.EndOfLine() in ImapStream/Pop3Stream TryReadLine()
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Verify that NOTIFY mailbox filter folders belong to the ImapClient
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Report aggregate progress for multi-message Append without MULTIAPPEND
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Remove TODO about using CONVERT for preview text
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Validate DIGEST-MD5 qop before responding with qop="auth"
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Validate AnnotationAttribute specifiers according to rfc5257
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Remove ParserOptions FIXME from the ImapClient constructor
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Bumped MimeKit for more preview v5.0.0 goodness
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Add preliminary MailKit 5.0.0 release notes
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Add ProtocolErrorType and CommandErrorType to classify protocol and command errors
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Add MimeKit documentation examples to the Documentation project
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Commits on Oct 3, 2026
Make SaslMechanism.Create() throw NotSupportedException for unsupported mechanisms
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Remove previously obsoleted APIs
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Return IMimeMessage from IMailFolder and IMailSpool GetMessage APIs
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Widen message sizes, line counts and offsets to 64-bit
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Removed the FIXME about making MessageThread.UniqueId non-nullable
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Moved DeliveryStatusNotificationType to the MailKit namespace
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Retired MailKitLite and switched MailKit's dependency to MimeKit.Core
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Removed ImapClient.Compress[Async]() on frameworks that cannot support it
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Bumped MimeKit to the latest master
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Updated doc examples for MimeKit API changes
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Bumped MimeKit to the latest master (for v5.0 development)
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Fixed the SslHandshakeExceptionTests
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Updated the unit tests for the DeflateStream-based CompressedStream
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Replaced BouncyCastle's Zlib with System.IO.Compression.DeflateStream
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Fixed ImapStream.Flush() to always flush the underlying stream when needed
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Commits on Sep 27, 2026
Removed DES.cs and HMACMD5.cs - no longer needed
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Bumped version to 4.18.1
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Updated BadSSL unit test
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Bumped MimeKit dependency to 4.18.1
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Commits on Sep 26, 2026
Fixed telemetry duration histograms being 100x too large on Linux/macOS (#2020)
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Commits on Sep 13, 2026
Bumped version to 4.18.0
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