MailKit 2.5.1
Prefix ReservedSee the version list below for details.
Requires NuGet 2.12 or higher.
dotnet add package MailKit --version 2.5.1
NuGet\Install-Package MailKit -Version 2.5.1
<PackageReference Include="MailKit" Version="2.5.1" />
<PackageVersion Include="MailKit" Version="2.5.1" />
<PackageReference Include="MailKit" />
paket add MailKit --version 2.5.1
#r "nuget: MailKit, 2.5.1"
#addin nuget:?package=MailKit&version=2.5.1
#tool nuget:?package=MailKit&version=2.5.1
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, 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.
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. 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. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
| .NET Core | netcoreapp1.0 was computed. netcoreapp1.1 was computed. netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
| .NET Standard | netstandard1.3 is compatible. netstandard1.4 was computed. netstandard1.5 was computed. netstandard1.6 is compatible. netstandard2.0 is compatible. netstandard2.1 was computed. |
| .NET Framework | net45 is compatible. net451 was computed. net452 was computed. net46 is compatible. net461 was computed. net462 was computed. net463 was computed. net47 is compatible. net471 was computed. net472 was computed. net48 is compatible. net481 was computed. |
| MonoAndroid | monoandroid is compatible. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. |
| Tizen | tizen30 was computed. tizen40 was computed. tizen60 was computed. |
| Universal Windows Platform | uap was computed. uap10.0 was computed. |
| Xamarin.iOS | xamarinios is compatible. |
| Xamarin.Mac | xamarinmac was computed. |
| Xamarin.TVOS | xamarintvos was computed. |
| Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETFramework 4.5
- MimeKit (>= 2.5.1)
-
.NETFramework 4.6
- MimeKit (>= 2.5.1)
-
.NETFramework 4.7
- MimeKit (>= 2.5.1)
-
.NETFramework 4.8
- MimeKit (>= 2.5.1)
-
.NETStandard 1.3
- MimeKit (>= 2.5.1)
- System.Net.NameResolution (>= 4.3.0)
- System.Net.Security (>= 4.3.2)
- System.Runtime.Serialization.Primitives (>= 4.3.0)
-
.NETStandard 1.6
- MimeKit (>= 2.5.1)
- System.Net.NameResolution (>= 4.3.0)
- System.Net.Security (>= 4.3.2)
- System.Runtime.Serialization.Primitives (>= 4.3.0)
-
.NETStandard 2.0
- MimeKit (>= 2.5.1)
- System.Net.NameResolution (>= 4.3.0)
- System.Net.Security (>= 4.3.2)
- System.Runtime.Serialization.Primitives (>= 4.3.0)
-
MonoAndroid 0.0
- MimeKit (>= 2.5.1)
-
Xamarin.iOS 0.0
- MimeKit (>= 2.5.1)
NuGet packages (1.1K)
Showing the top 5 NuGet packages that depend on MailKit:
| Package | Downloads |
|---|---|
|
Umbraco.Cms.Infrastructure
Contains the infrastructure assembly needed to run Umbraco CMS. |
|
|
NETCore.MailKit
MailKit extension for asp.net core. Easy send email in asp.net core project. |
|
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Serilog.Sinks.Email
Send Serilog events as SMTP email using MailKit. |
|
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Abp.MailKit
Abp.MailKit |
|
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NLog.MailKit
NLog Mail Target for .NET Core & .NET Standard 2.0+ using MailKit. This package add the mail target to NLog and has the same options* as the original Mail Target. If the mail target was already available on your platform, this package will overwrite the original Mail Target. * Compared to the original MailTarget, the following options aren't implemented: - NTLM auth * MailKit gives more control of the sockets, so you get the `secureSocketOption` option for free! |
GitHub repositories (139)
Showing the top 20 popular GitHub repositories that depend on MailKit:
| Repository | Stars |
|---|---|
|
ardalis/CleanArchitecture
Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 9
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bitwarden/server
Bitwarden infrastructure/backend (API, database, Docker, etc).
|
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abpframework/abp
Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.
|
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duplicati/duplicati
Store securely encrypted backups in the cloud!
|
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aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
|
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Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
|
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Radarr/Radarr
Movie organizer/manager for usenet and torrent users.
|
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|
dodyg/practical-aspnetcore
Practical samples of ASP.NET Core 10 Preview 4, 9, 8.0, 7.0, 6.0, 5.0, 3.1, 2.2, and 2.1,projects you can use. Readme contains explanations on all projects.
|
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nopSolutions/nopCommerce
ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.
|
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Kareadita/Kavita
Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.
|
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OrchardCMS/OrchardCore
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 framework.
|
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elsa-workflows/elsa-core
A .NET workflows library
|
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btcpayserver/btcpayserver
Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.
|
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|
fullstackhero/dotnet-starter-kit
Production Grade Cloud-Ready .NET 9 Starter Kit (Web API + Blazor Client) with Multitenancy Support, and Clean/Modular Architecture that saves roughly 200+ Development Hours! All Batteries Included.
|
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|
win-acme/win-acme
A simple ACME client for Windows (for use with Let's Encrypt et al.)
|
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|
umbraco/Umbraco-CMS
Umbraco is a free and open source .NET content management system helping you deliver delightful digital experiences.
|
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|
Prowlarr/Prowlarr
Prowlarr is an indexer manager/proxy built on the popular *arr .net/reactjs base stack to integrate with your various PVR apps, supporting management of both Torrent Trackers and Usenet Indexers.
|
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|
immense/Remotely
A remote control and remote scripting solution, built with .NET 8, Blazor, and SignalR.
|
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simplcommerce/SimplCommerce
A simple, cross platform, modulith ecommerce system built on .NET
|
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jamesmh/coravel
Near-zero config .NET library that makes advanced application features like Task Scheduling, Caching, Queuing, Event Broadcasting, and more a breeze!
|
| Version | Downloads | Last updated |
|---|---|---|
| 4.12.1 | 116,344 | 5/17/2025 |
| 4.12.0 | 262,762 | 4/29/2025 |
| 4.11.0 | 1,296,384 | 3/9/2025 |
| 4.10.0 | 1,661,934 | 1/26/2025 |
| 4.9.0 | 1,752,024 | 12/10/2024 |
| 4.8.0 | 4,659,277 | 9/29/2024 |
| 4.7.1.1 | 5,095,831 | 7/15/2024 |
| 4.7.1 | 361,189 | 7/12/2024 |
| 4.7.0 | 641,034 | 6/29/2024 |
| 4.6.0 | 2,460,187 | 5/17/2024 |
| 4.5.0 | 1,659,800 | 4/13/2024 |
| 4.4.0 | 2,363,293 | 3/2/2024 |
| 4.3.0 | 7,008,038 | 11/11/2023 |
| 4.2.0 | 3,293,453 | 9/2/2023 |
| 4.1.0 | 4,156,828 | 6/17/2023 |
| 4.0.0 | 2,946,562 | 4/15/2023 |
| 3.6.0 | 2,855,736 | 3/4/2023 |
| 3.5.0 | 2,569,809 | 1/28/2023 |
| 3.4.3 | 3,749,210 | 11/25/2022 |
| 3.4.2 | 2,453,565 | 10/24/2022 |
| 3.4.1 | 2,186,950 | 9/12/2022 |
| 3.4.0 | 333,728 | 9/5/2022 |
| 3.3.0 | 5,783,510 | 6/12/2022 |
| 3.2.0 | 10,654,029 | 3/26/2022 |
| 3.1.1 | 4,129,753 | 1/30/2022 |
| 3.1.0 | 886,615 | 1/15/2022 |
| 3.0.0 | 3,226,234 | 12/11/2021 |
| 2.15.0 | 12,158,157 | 8/19/2021 |
| 2.14.0 | 875,544 | 7/28/2021 |
| 2.13.0 | 2,954,689 | 6/12/2021 |
| 2.12.0 | 1,399,978 | 5/12/2021 |
| 2.11.1 | 2,522,390 | 3/16/2021 |
| 2.11.0 | 166,829 | 3/12/2021 |
| 2.10.1 | 5,335,905 | 1/2/2021 |
| 2.10.0 | 3,404,231 | 11/21/2020 |
| 2.9.0 | 3,430,981 | 9/12/2020 |
| 2.8.0 | 3,530,306 | 7/11/2020 |
| 2.7.0 | 3,190,732 | 5/30/2020 |
| 2.6.0 | 8,267,259 | 4/4/2020 |
| 2.5.2 | 1,382,715 | 3/14/2020 |
| 2.5.1 | 1,465,010 | 2/15/2020 |
| 2.5.0 | 1,197,148 | 1/18/2020 |
| 2.4.1 | 2,375,454 | 11/10/2019 |
| 2.4.0.1 | 119,507 | 11/5/2019 |
| 2.4.0 | 27,053 | 11/3/2019 |
| 2.3.2 | 538,621 | 10/12/2019 |
| 2.3.1.6 | 1,229,977 | 9/9/2019 |
| 2.3.1 | 98,215 | 9/8/2019 |
| 2.3.0 | 734,301 | 8/24/2019 |
| 2.2.0 | 2,419,401 | 6/11/2019 |
| 2.1.5.1 | 976,070 | 5/13/2019 |
| 2.1.4 | 662,488 | 4/13/2019 |
| 2.1.3 | 1,286,154 | 2/24/2019 |
| 2.1.2 | 1,419,992 | 12/30/2018 |
| 2.1.1 | 212,423 | 12/17/2018 |
| 2.1.0.3 | 212,991 | 12/7/2018 |
| 2.0.7 | 929,947 | 10/28/2018 |
| 2.0.6 | 3,020,825 | 8/4/2018 |
| 2.0.5 | 506,244 | 7/7/2018 |
| 2.0.4 | 706,518 | 5/25/2018 |
| 2.0.3 | 717,229 | 4/15/2018 |
| 2.0.2 | 233,499 | 3/18/2018 |
| 2.0.1 | 1,747,080 | 1/6/2018 |
| 2.0.0 | 200,865 | 12/22/2017 |
| 1.22.0 | 704,587 | 11/24/2017 |
| 1.20.0 | 592,795 | 10/28/2017 |
| 1.18.1.1 | 747,235 | 9/4/2017 |
| 1.18.1 | 22,421 | 9/3/2017 |
| 1.18.0 | 219,410 | 8/7/2017 |
| 1.16.2 | 523,609 | 7/1/2017 |
| 1.16.1 | 715,957 | 5/5/2017 |
| 1.16.0 | 92,177 | 4/21/2017 |
| 1.14.2 | 47,444 | 4/12/2017 |
| 1.12.0 | 238,706 | 3/12/2017 |
| 1.10.2 | 229,135 | 1/28/2017 |
| 1.10.1 | 189,827 | 12/4/2016 |
| 1.10.0 | 486,058 | 10/31/2016 |
* Fixed the IMAP ENVELOPE parser to have a more lenient fallback if it fails to be able to parse the Message-Id token value. (issue #976)
* Fixed MailService.DefaultServerCertificateValidationCallback() to compare certificates by their hashes rather than via Object.Equals(). (issue #977)
* Added work-around for IMAP servers that send `-1` as a line count or octet count in the BODYSTRUCTURE response.
API Changes Since 2.0.x:
* Obsoleted SearchQuery.HasCustomFlags() and SearchQuery.DoesNotHaveCustomFlags(). These are now SearchQuery.HasKeywords() and SearchQuery.NotKeywords(), respectively.
* Obsoleted SearchQuery.DoesNotHaveFlags() in favor of SearchQuery.NotFlags().
* Obsoleted the IMessageSummary.UserFlags property in favor of IMessageSummary.Keywords.
* Obsoleted the MessageFlagsChangedEventArgs.UserFlags property in favor of MessageFlagsChangedEventArgs.Keywords.
* All IMailFolder.Fetch and IMailFolder.FetchAsync methods that took a HashSet<string> userFlags argument now take an IEnumerable<string> keywords argument. Note: this only affects you if your code used named method parameters (e.g. userFlags: myUserFlags).
Note to users upgrading from MailKit 1.x:
In order to authenticate using the XOAUTH2 SASL mechanism, you must now use the following approach:
client.Authenticate (new SaslMechanismOAuth2 (username, auth_token));