MimeKitLite 3.1.1
MimeKit is an Open Source library for creating and parsing MIME messages. It also supports parsing of Unix mbox files.
Unlike any other .NET MIME parser, MimeKit's parser does not need to parse string input nor does it use a TextReader. Instead, it parses raw byte streams, thus allowing it to better support undeclared 8bit text in headers as well as message bodies. It also means that MimeKit's parser is significantly faster than other .NET MIME parsers.
MimeKit's parser also uses a real tokenizer when parsing the headers rather than regex or string.Split() like most other .NET MIME parsers. This means that MimeKit is much more RFC-compliant than any other .NET MIME parser out there, including the commercial implementations.
In addition to having a far superior parser implementation, MimeKit's object tree is not a derivative of System.Net.Mail objects and thus does not suffer from System.Net.Mail's limitations.
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
No packages depend on MimeKitLite.
* When initializing character encodings for netstandard and net50/net60, wrap the Reflection logic to invoke System.Text.Encoding.RegisterProvider() in a try/catch to prevents exceptions when using the netstandard version of MimeKit in a .NET Framework app. (issue #751)
* Added a work-around for Office365 `message/delivery-status` parts where all status groups after the first are base64 encoded. This seems to be a bug in Office365 where it treats the first status group as MIME entity and the following status groups as the content. (issue #250)
* Fixed the MimeMessage .ctor that takes object parameters to first check that a Message-Id header was not supplied before generating one for the message. (issue #747)
* Fixed the BestEncodingFilter logic such that if any line in binary content is > 998 and it contains nul bytes, it should recommend base64 (not quoted-printable).
.NET Framework 4.5.2
- System.Buffers (>= 4.5.1)
.NET Standard 2.1
- System.Buffers (>= 4.5.1)
- System.Reflection.TypeExtensions (>= 4.4.0)
- System.Text.Encoding.CodePages (>= 4.4.0)
.NET Standard 2.0
- System.Buffers (>= 4.5.1)
- System.Text.Encoding.CodePages (>= 4.4.0)
- System.Reflection.TypeExtensions (>= 4.4.0)
.NET 5.0
- No dependencies.
.NET Framework 4.8
- System.Buffers (>= 4.5.1)
.NET Framework 4.7
- System.Buffers (>= 4.5.1)
.NET Framework 4.6
- System.Buffers (>= 4.5.1)
.NET 6.0
- No dependencies.
| Version | Downloads | Last updated |
|---|---|---|
| 4.13.0 | 0 | 6/25/2025 |
| 4.12.0 | 0 | 4/29/2025 |
| 4.11.0 | 0 | 3/8/2025 |
| 4.10.0 | 0 | 1/26/2025 |
| 4.9.0 | 0 | 12/9/2024 |
| 4.8.0 | 0 | 9/29/2024 |
| 4.7.1 | 0 | 7/12/2024 |
| 4.7.0 | 0 | 6/29/2024 |
| 4.6.0 | 0 | 5/18/2024 |
| 4.5.0 | 0 | 4/13/2024 |
| 4.4.0 | 0 | 3/2/2024 |
| 4.3.0 | 0 | 11/11/2023 |
| 4.2.0 | 0 | 9/2/2023 |
| 4.1.0.1 | 1 | 3/7/2025 |
| 4.1.0 | 2 | 3/7/2025 |
| 4.0.0 | 4 | 3/7/2025 |
| 3.6.1 | 2 | 3/8/2025 |
| 3.6.0 | 3 | 3/8/2025 |
| 3.5.0 | 2 | 3/7/2025 |
| 3.4.3 | 2 | 3/7/2025 |
| 3.4.2 | 1 | 3/7/2025 |
| 3.4.1 | 2 | 3/7/2025 |
| 3.4.0 | 2 | 3/7/2025 |
| 3.3.0 | 2 | 3/7/2025 |
| 3.2.0 | 1 | 3/7/2025 |
| 3.1.1 | 3 | 3/7/2025 |
| 3.1.0 | 2 | 3/8/2025 |
| 3.0.0 | 2 | 3/7/2025 |
| 2.15.1 | 2 | 3/7/2025 |
| 2.15.0 | 3 | 3/7/2025 |
| 2.14.0 | 2 | 3/7/2025 |
| 2.13.0 | 2 | 3/7/2025 |
| 2.12.0 | 2 | 3/7/2025 |
| 2.11.0 | 2 | 3/7/2025 |
| 2.10.1 | 2 | 3/7/2025 |
| 2.10.0 | 2 | 3/7/2025 |
| 2.9.2 | 2 | 3/7/2025 |
| 2.9.1 | 3 | 3/7/2025 |
| 2.7.0 | 3 | 3/8/2025 |
| 2.6.0 | 2 | 3/8/2025 |
| 2.5.2 | 2 | 3/7/2025 |
| 2.5.1 | 2 | 3/7/2025 |
| 2.5.0 | 3 | 3/7/2025 |
| 2.4.1 | 3 | 3/7/2025 |
| 2.4.0.1 | 1 | 3/7/2025 |
| 2.4.0 | 3 | 3/8/2025 |
| 2.3.2 | 2 | 3/7/2025 |
| 2.3.1 | 2 | 3/7/2025 |
| 2.3.0 | 2 | 3/7/2025 |
| 2.2.0 | 2 | 3/8/2025 |
| 2.1.5.1 | 1 | 3/7/2025 |
| 2.1.4 | 2 | 3/7/2025 |
| 2.1.3 | 2 | 3/7/2025 |
| 2.1.1 | 2 | 3/7/2025 |
| 2.1.0 | 2 | 3/7/2025 |
| 2.0.7 | 2 | 3/7/2025 |
| 2.0.6 | 2 | 3/8/2025 |
| 2.0.5 | 2 | 3/7/2025 |
| 2.0.4 | 1 | 3/7/2025 |
| 2.0.3 | 2 | 3/8/2025 |
| 2.0.2 | 2 | 3/7/2025 |
| 2.0.1 | 2 | 3/7/2025 |
| 2.0.0 | 2 | 3/7/2025 |
| 1.22.0 | 4 | 3/7/2025 |
| 1.20.0 | 2 | 3/7/2025 |
| 1.18.1 | 2 | 3/7/2025 |
| 1.18.0 | 3 | 3/7/2025 |
| 1.16.2 | 2 | 3/7/2025 |
| 1.16.1 | 3 | 3/7/2025 |
| 1.16.0 | 4 | 6/12/2024 |
| 1.14.0 | 3 | 3/7/2025 |
| 1.12.0 | 2 | 3/7/2025 |
| 1.10.1 | 2 | 3/7/2025 |
| 1.10.0 | 2 | 3/7/2025 |