MailKit 2.12.0

Prefix Reserved
.NET 5.0 This package targets .NET 5.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.5 This package targets .NET Framework 4.5. The package is compatible with this framework or higher.
There is a newer version of this package available.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 2.12.0                

                    
                

            
NuGet\Install-Package MailKit -Version 2.12.0
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="2.12.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add MailKit --version 2.12.0                

                    
                

            
#r "nuget: MailKit, 2.12.0"
#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=2.12.0

// Install MailKit as a Cake Tool
#tool nuget:?package=MailKit&version=2.12.0

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 (952)

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
4.8.0 868,876 9/29/2024
4.7.1.1 2,349,291 7/15/2024
4.7.1 167,531 7/12/2024
4.7.0 437,037 6/29/2024
4.6.0 1,587,652 5/17/2024
4.5.0 1,173,464 4/13/2024
4.4.0 1,823,535 3/2/2024
4.3.0 5,509,181 11/11/2023
4.2.0 2,659,362 9/2/2023
4.1.0 3,636,401 6/17/2023
4.0.0 2,519,965 4/15/2023
3.6.0 2,509,857 3/4/2023
3.5.0 2,250,515 1/28/2023
3.4.3 3,326,320 11/25/2022
3.4.2 2,241,910 10/24/2022
3.4.1 2,018,236 9/12/2022
3.4.0 306,062 9/5/2022
3.3.0 5,196,268 6/12/2022
3.2.0 9,455,670 3/26/2022
3.1.1 3,663,703 1/30/2022
3.1.0 809,326 1/15/2022
3.0.0 2,670,942 12/11/2021
2.15.0 11,330,227 8/19/2021
2.14.0 797,944 7/28/2021
2.13.0 2,759,924 6/12/2021
2.12.0 1,340,294 5/12/2021
2.11.1 2,368,469 3/16/2021
2.11.0 155,538 3/12/2021
2.10.1 4,680,663 1/2/2021
2.10.0 3,149,954 11/21/2020
2.9.0 3,243,010 9/12/2020
2.8.0 3,355,260 7/11/2020
2.7.0 2,891,270 5/30/2020
2.6.0 7,627,497 4/4/2020
2.5.2 1,280,073 3/14/2020
2.5.1 1,325,230 2/15/2020
2.5.0 1,137,487 1/18/2020
2.4.1 2,248,626 11/10/2019
2.4.0.1 117,080 11/5/2019
2.4.0 25,238 11/3/2019
2.3.2 512,458 10/12/2019
2.3.1.6 1,170,430 9/9/2019
2.3.1 96,271 9/8/2019
2.3.0 706,738 8/24/2019
2.2.0 2,341,800 6/11/2019
2.1.5.1 924,381 5/13/2019
2.1.4 639,742 4/13/2019
2.1.3 1,237,976 2/24/2019
2.1.2 1,370,463 12/30/2018
2.1.1 201,303 12/17/2018
2.1.0.3 206,815 12/7/2018
2.0.7 914,204 10/28/2018
2.0.6 2,975,079 8/4/2018
2.0.5 491,814 7/7/2018
2.0.4 662,372 5/25/2018
2.0.3 658,914 4/15/2018
2.0.2 229,796 3/18/2018
2.0.1 1,689,956 1/6/2018
2.0.0 185,041 12/22/2017
1.22.0 678,039 11/24/2017
1.20.0 576,218 10/28/2017
1.18.1.1 717,979 9/4/2017
1.18.1 21,231 9/3/2017
1.18.0 217,137 8/7/2017
1.16.2 516,087 7/1/2017
1.16.1 682,474 5/5/2017
1.16.0 90,900 4/21/2017
1.14.2 46,338 4/12/2017
1.12.0 218,332 3/12/2017
1.10.2 223,583 1/28/2017
1.10.1 188,415 12/4/2016
1.10.0 478,416 10/31/2016

* Fixed the .NET 5.0 build to include .NET 5.0-specific features. Previous releases incorrectly used #if NET50 instead of #if NET5_0. (issue #1140)
* Added support for NETStandard 2.1. (issue #1181)
* .NETStandard 2.1 and .NET 5.0 versions of MailKit now use the newer SslStream.AuthenticateAsClientAsync() methods that take SslClientAuthenticationOptions and CancellationToken arguments. In theory, this should make upgrading a TCP/IP connection to SSL/TLS cancellable. Older .NET frameworks remain uncancellable for this operation.
* Fixed a NullReferenceException bug in the NTLM SASL mechanism logic.
* Updated hard-coded SSL certificate serial numbers and fingerprints for common mail servers.

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));