NuGet · #1338 most downloaded on NuGet

MimeKitLite

4.18.132M downloads/mojstedfast/MimeKit ↗New releases in your daily digest, changelog included.

MimeKit is an Open Source library for creating and parsing MIME messages. It also supports parsing of Unix mbox files. The difference between MimeKit and MimeKitLite is that MimeKitLite lacks support for most cryptography features such as OpenPGP, S/MIME and DKIM. API documentation can be found on the web at http://www.mimekit.net/docs For those that need SMTP, POP3 or IMAP support, check out https://github.com/jstedfast/MailKit

Last release 2 days ago
19 Sep 2026
Ships fairly regularly
a new release about every 2 months
Nearly every release is documented
notes for 57 of the last 60 stable releases
74 versions withdrawn
withdrawn after publishing
127 years old
155 releases · first in 1900

Release timeline

155 releases since 1900

Releases

1.0.41 Jan 1900withdrawn
Added workaround for msg-id tokens with multiple domains (e.g. id@domain1@domain2).
Added workaround for msg-id tokens with multiple domains (e.g. id@domain1@domain2).

Added convenience methods to Header to allow the use of charset strings.

Added more HeaderList.Replace() method overloads for convenience.

Added a FormatOptions property to disallow the use of mixed charsets when encoding headers (issue #139).
Open source →
1.0.31 Jan 1900withdrawn
Improved MimeMessage.TextBody and MimeMessage.HtmlBody logic. (issue #87)
Improved MimeMessage.TextBody and MimeMessage.HtmlBody logic. (issue #87)

Added new overrides of TextPart.GetText() and SetText() methods that take a charset string argument instead of a System.Text.Encoding.

Fixed charset fallback logic to work properly (it incorrectly assumed that by default, Encoding.UTF8.GetString() would throw an exception when it encountered illegal byte sequences). (issue #88)

Fixed S/MIME logic for finding X.509 certificates to use for encipherment. (issue #89)

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1.0.21 Jan 1900withdrawn

Fixed MimeMessage.HtmlBody and MimeMessage.TextBody to properly handle nested multipart/alternatives (only generated by automated mailers).

Fixed MimeMessage.HtmlBody and MimeMessage.TextBody to properly handle nested multipart/alternatives (only generated by automated mailers).

Open source →

1.0.11 Jan 1900withdrawn

Added MimeMessage.HtmlBody and MimeMessage.TextBody convenience properties.

Added MimeMessage.HtmlBody and MimeMessage.TextBody convenience properties.
Added TextPart.IsPlain and TextPart.IsHtml convenience properties.

Open source →

1.0.01 Jan 1900withdrawn