MailKit 2.15.0

Prefix Reserved
There is a newer version of this package available.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 MailKit --version 2.15.0                
NuGet\Install-Package MailKit -Version 2.15.0                
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="MailKit" Version="2.15.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MailKit --version 2.15.0                
#r "nuget: MailKit, 2.15.0"                
#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 MailKit as a Cake Addin
#addin nuget:?package=MailKit&version=2.15.0

// Install MailKit as a Cake Tool
#tool nuget:?package=MailKit&version=2.15.0                

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 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.

Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  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. 
.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 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 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.
  • .NETFramework 4.5

  • .NETFramework 4.6

  • .NETFramework 4.7

  • .NETFramework 4.8

  • .NETStandard 2.0

  • .NETStandard 2.1

  • net5.0

NuGet packages (949)

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.

Serilog.Sinks.Email

Send Serilog events as SMTP email using MailKit.

Abp.MailKit

Abp.MailKit

NET6CustomLibrary

open source custom dotnet extension library

GitHub repositories (124)

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

Repository Stars
ardalis/CleanArchitecture
Clean Architecture Solution Template: A starting point for Clean Architecture with ASP.NET Core
bitwarden/server
Bitwarden infrastructure/backend (API, database, Docker, etc).
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.
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
duplicati/duplicati
Store securely encrypted backups in the cloud!
Version Downloads Last updated
4.8.0 76,377 9/29/2024
4.7.1.1 1,654,195 7/15/2024
4.7.1 131,726 7/12/2024
4.7.0 369,220 6/29/2024
4.6.0 1,367,447 5/17/2024
4.5.0 1,049,897 4/13/2024
4.4.0 1,704,075 3/2/2024
4.3.0 5,120,968 11/11/2023
4.2.0 2,558,137 9/2/2023
4.1.0 3,509,457 6/17/2023
4.0.0 2,417,611 4/15/2023
3.6.0 2,428,057 3/4/2023
3.5.0 2,182,864 1/28/2023
3.4.3 3,227,277 11/25/2022
3.4.2 2,184,938 10/24/2022
3.4.1 1,973,146 9/12/2022
3.4.0 299,674 9/5/2022
3.3.0 5,064,515 6/12/2022
3.2.0 9,178,818 3/26/2022
3.1.1 3,551,075 1/30/2022
3.1.0 789,213 1/15/2022
3.0.0 2,546,951 12/11/2021
2.15.0 11,120,173 8/19/2021
2.14.0 789,040 7/28/2021
2.13.0 2,709,798 6/12/2021
2.12.0 1,326,164 5/12/2021
2.11.1 2,332,478 3/16/2021
2.11.0 153,195 3/12/2021
2.10.1 4,552,166 1/2/2021
2.10.0 3,100,847 11/21/2020
2.9.0 3,204,218 9/12/2020
2.8.0 3,312,936 7/11/2020
2.7.0 2,843,861 5/30/2020
2.6.0 7,498,268 4/4/2020
2.5.2 1,249,590 3/14/2020
2.5.1 1,283,426 2/15/2020
2.5.0 1,124,395 1/18/2020
2.4.1 2,225,081 11/10/2019
2.4.0.1 116,150 11/5/2019
2.4.0 24,809 11/3/2019
2.3.2 506,506 10/12/2019
2.3.1.6 1,155,163 9/9/2019
2.3.1 96,044 9/8/2019
2.3.0 701,490 8/24/2019
2.2.0 2,316,784 6/11/2019
2.1.5.1 913,656 5/13/2019
2.1.4 632,928 4/13/2019
2.1.3 1,227,304 2/24/2019
2.1.2 1,348,620 12/30/2018
2.1.1 199,646 12/17/2018
2.1.0.3 205,221 12/7/2018
2.0.7 910,605 10/28/2018
2.0.6 2,963,124 8/4/2018
2.0.5 488,578 7/7/2018
2.0.4 657,482 5/25/2018
2.0.3 647,083 4/15/2018
2.0.2 228,792 3/18/2018
2.0.1 1,678,738 1/6/2018
2.0.0 181,827 12/22/2017
1.22.0 669,695 11/24/2017
1.20.0 573,142 10/28/2017
1.18.1.1 710,458 9/4/2017
1.18.1 20,986 9/3/2017
1.18.0 216,769 8/7/2017
1.16.2 514,510 7/1/2017
1.16.1 673,867 5/5/2017
1.16.0 90,671 4/21/2017
1.14.2 46,209 4/12/2017
1.12.0 215,285 3/12/2017
1.10.2 222,120 1/28/2017
1.10.1 188,113 12/4/2016
1.10.0 476,338 10/31/2016

* Use DebugType=full for .NET Framework v4.x. (issue [#1239](https://github.com/jstedfast/MailKit/issues/1239))
* Updated GMail SSL certificate serial numbers and fingerprints.
* Small NTLM code improvements.

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));