MimeKitLite 3.2.0

There is a newer version of this package available.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

Requires NuGet 2.12 or higher.

dotnet add package MimeKitLite --version 3.2.0
NuGet\Install-Package MimeKitLite -Version 3.2.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="MimeKitLite" Version="3.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MimeKitLite --version 3.2.0
#r "nuget: MimeKitLite, 3.2.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install MimeKitLite as a Cake Addin
#addin nuget:?package=MimeKitLite&version=3.2.0

// Install MimeKitLite as a Cake Tool
#tool nuget:?package=MimeKitLite&version=3.2.0

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

Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net452 is compatible.  net46 was computed.  net461 is compatible.  net462 was computed.  net463 was computed.  net47 is compatible.  net471 was computed.  net472 was computed.  net48 is compatible.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (17)

Showing the top 5 NuGet packages that depend on MimeKitLite:

Package Downloads
WireMock.Net The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Lightweight Http Mocking Server for .Net, inspired by WireMock from the Java landscape.


StrongGrid is a strongly typed .NET client for SendGrid's v3 API.


MzAutomation Test Framework. Documentation coming soon..


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 ANONYMOUS, 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.


Package Description

GitHub repositories (4)

Showing the top 4 popular GitHub repositories that depend on MimeKitLite:

Repository Stars
WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on the functionality from http://WireMock.org, but extended with more functionality.
Framework for Kerberos relaying
DDD 开源.NET CMS、跨平台, 兼容.NET Core和ASP.NET,支持Docker容器
Strongly typed library for the entire SendGrid v3 API, including webhooks
Version Downloads Last updated
4.4.0 54 3/2/2024
4.3.0 80,198 11/11/2023
4.2.0 66,685 9/2/2023 1,452,444 6/24/2023
4.1.0 12,771 6/17/2023
4.0.0 47,551 4/15/2023
3.6.1 26,874 3/19/2023
3.6.0 19,452 3/4/2023
3.5.0 44,407 1/28/2023
3.4.3 68,044 11/25/2022
3.4.2 49,918 10/24/2022
3.4.1 28,670 9/12/2022
3.4.0 15,756 8/18/2022
3.3.0 75,913 6/11/2022
3.2.0 83,791 3/26/2022
3.1.1 52,023 1/30/2022
3.1.0 12,818 1/15/2022
3.0.0 14,589 12/11/2021
2.15.1 216,067 9/13/2021
2.15.0 9,793 8/19/2021
2.14.0 11,751 7/28/2021
2.13.0 95,020 6/12/2021
2.12.0 34,231 5/12/2021
2.11.0 46,795 3/12/2021
2.10.1 81,574 12/5/2020
2.10.0 22,043 11/21/2020
2.9.2 79,166 9/12/2020
2.9.1 96,862 7/11/2020
2.7.0 158,603 5/19/2020
2.6.0 28,025 4/4/2020
2.5.2 40,554 3/14/2020
2.5.1 24,959 2/15/2020
2.5.0 20,261 1/18/2020
2.4.1 72,279 11/10/2019 5,224 11/5/2019
2.4.0 1,552 11/3/2019
2.3.2 54,000 10/12/2019
2.3.1 18,809 9/8/2019
2.3.0 20,094 8/24/2019
2.2.0 54,591 6/11/2019 100,808 5/13/2019
2.1.4 70,684 4/13/2019
2.1.3 58,022 2/24/2019
2.1.1 57,262 12/16/2018
2.1.0 17,138 12/1/2018
2.0.7 626,454 10/28/2018
2.0.6 81,399 8/4/2018
2.0.5 160,449 7/7/2018
2.0.4 54,636 5/21/2018
2.0.3 8,891 4/14/2018
2.0.2 17,083 3/17/2018
2.0.1 571,980 1/6/2018
2.0.0 11,599 12/22/2017
1.22.0 12,319 11/24/2017
1.20.0 32,872 10/28/2017
1.18.1 10,278 9/3/2017
1.18.0 11,705 8/7/2017
1.16.2 10,976 7/1/2017
1.16.1 30,387 5/5/2017
1.16.0 2,991 4/21/2017
1.14.0 8,107 4/9/2017
1.12.0 49,891 3/12/2017
1.10.1 13,470 1/28/2017
1.10.0 312,175 10/31/2016

* Rewrote QuotedPrintableEncoder to more strictly fold at the specified line length. (issue #781)
* Change the default maxLineLength for quoted-printable/base64 encoders to 76 to match the recommendation in the specification (was previously 72).
* Use cached Task instances (e.g. Task.CompletedTask) when possible to improve performance.
* Make use of ReadOnlySpan<T> instead of String.Substring() wherever possible to improve performance.
* Reduced string allocations in other ways.
* Provide MailboxAddress accessors for LocalPart and Domain. (issue #766)
* Replaced support for .NET Framework v4.6 with 4.6.1 and added a System.Text.Encoding.CodePages dependency to solve various cases where MimeKit would fail to initialize properly on ASP.NET systems using net461 when system character encodings were not available.
* Fixed MessagePartial to use invariant culture when setting number/total param values.
* Make sure all int.TryParse() calls use the correct NumberStyles.
* Make use of a ValueStringBuilder to construct strings without needing to allocate a StringBuilder.
* Fixed InternetAddressList.TryParse() to fail on invalid input. (issue #762)
* Added dispose handling to MimeMessage.CreateFromMailMessage().
* Improved MIME structure returned by TnefPart.ConvertToMessage().
* Rewrote header folding logic to avoid string allocations.
* Implemented IEquatable<T> on TnefNameId.
* If iso-8859-1 isn't available, fall back to ASCII instead of Windows-1252. (issue #751)

Special Thanks to Jason Nelson for taking the lead on many of the listed (and unlisted) performance
improvements and helping me make MimeKit even more awesome!