MimeKit 1.16.2

MimeKit is an Open Source library for creating and parsing MIME, S/MIME and PGP messages on desktop and mobile platforms. 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 (more than 25x faster than OpenPOP.NET and over 100x faster than AE.Net.Mail and MailSystem.NET).

     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 massive limitations or bugs.

     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

There is a newer version of this package available.
See the version list below for details.

Requires NuGet 2.12 or higher.

Install-Package MimeKit -Version 1.16.2
dotnet add package MimeKit --version 1.16.2
<PackageReference Include="MimeKit" Version="1.16.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MimeKit --version 1.16.2
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

* Fixed a bug in the MailMessage to MimeMessage conversion which corrupted the Subject string. (issue #306)
* If no KeyUsage extension exists for an X509 certificate, assume no restrictions on key usage.
* Throw an exception if there is a problem building an X509 certificate chain when verifying S/MIME signatures.

NuGet packages (66)

Showing the top 5 NuGet packages that depend on MimeKit:

Package Downloads
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 SCRAM-SHA-256, SCRAM-SHA-1, NTLM, DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN, 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.
netDumbster is a .Net Fake SMTP Server clone of the popular Dumbster (http://quintanasoft.com/dumbster/) netDumbster is based on the API of nDumbster (http://ndumbster.sourceforge.net/default.html) and the nice C# Email Server (CSES) written by Eric Daugherty.
MsgKit is a 100% managed C# .NET library (no PINVOKE or whatsoever) which may be used for the creation of messages (E-Mail, Appointments, Journals and Stickey Notes) that are Outlook compatible
Package Description
SuperOffice NetServer Core is SuperOffice's data access technology for new applications. This is for onsite installations with the same version. This also works with SuperOffice Online.

GitHub repositories (18)

Showing the top 5 popular GitHub repositories that depend on MimeKit:

Repository Stars
Store securely encrypted backups in the cloud!
Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of that application framework.
An easy and fast way to build automation and workflows on Windows, Linux, macOS, and the cloud.
A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.
smtp4dev - the fake smtp email server for development and testing

Version History

Version Downloads Last updated
2.9.2 15,412 9/12/2020
2.9.1 329,800 7/11/2020
2.8.0 398,149 5/30/2020
2.7.0 59,030 5/19/2020
2.6.0 720,634 4/4/2020
2.5.2 246,277 3/14/2020
2.5.1 430,083 2/15/2020
2.5.0 371,584 1/18/2020
2.4.1 803,959 11/10/2019 72,448 11/5/2019
2.4.0 17,414 11/3/2019
2.3.2 208,363 10/12/2019
2.3.1 535,297 9/8/2019
2.3.0 346,368 8/24/2019
2.2.0 1,106,570 6/11/2019 455,880 5/13/2019
2.1.4 345,649 4/13/2019
2.1.3 670,094 2/24/2019
2.1.2 671,375 12/30/2018
2.1.1 125,032 12/16/2018
2.1.0 200,007 12/1/2018
2.0.7 175,920 10/28/2018
2.0.6 1,083,628 8/4/2018
2.0.5 278,743 7/7/2018
2.0.4 353,174 5/21/2018
2.0.3 327,714 4/14/2018
2.0.2 115,797 3/17/2018
2.0.1 744,191 1/6/2018
2.0.0 98,670 12/22/2017
1.22.0 295,526 11/24/2017
1.20.0 249,700 10/28/2017
1.18.1 465,921 9/3/2017
1.18.0 127,966 8/7/2017
1.16.2 342,764 7/1/2017
1.16.1 338,544 5/5/2017
1.16.0 85,098 4/21/2017
1.14.1 35,818 4/9/2017
1.14.0 86,777 4/9/2017
1.12.0 148,199 3/12/2017
1.10.1 117,585 1/28/2017
1.10.0 525,927 10/31/2016
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