MailKit 2.11.0

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.

There is a newer version of this package available.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

Requires NuGet 2.12 or higher.

Install-Package MailKit -Version 2.11.0
dotnet add package MailKit --version 2.11.0
<PackageReference Include="MailKit" Version="2.11.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MailKit --version 2.11.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: MailKit, 2.11.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. 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=2.11.0

// Install MailKit as a Cake Tool
#tool nuget:?package=MailKit&version=2.11.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

* Handle BAD responses to the NAMESPACE command for Exchange. (issue #1135)
* Added support for configuring SSL/TLS cipher algorithms (only available in the .NET 5.0 API). (issue #1140)
* Updated GMail and Yahoo! Mail SSL certificate info.
* Protect against NREs in NTLM authentication of no OSVersion is set. (issue #1148)
* Added work-around for hMailServer bug that doesn't accept seq-ranges in descending order. (issue #1150)
* Properly escape IPv6 addresses for Uri in order to allow Connect/Async methods to work with IPv6 addresses. (issue #1165)
* Added IsEncrypted and IsSigned properties to IMailService. (issue #1175)

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));

  • .NETFramework 4.5

  • .NETFramework 4.6

  • .NETFramework 4.7

  • .NETFramework 4.8

  • .NETStandard 2.0

  • net5.0

NuGet packages (374)

Showing the top 5 NuGet packages that depend on MailKit:

Package Downloads
Serilog.Sinks.Email
The email sink for Serilog
NETCore.MailKit
MailKit extension for asp.net core. Easy send email in asp.net core project.
Abp.MailKit
Abp.MailKit
NLog.MailKit
NLog Mail Target for .NET Core & .NET Standard, and .NET 4.5+ 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 (.NET Standard 2+, .NET 4.5), this package will overwrite the original Mail Target. * Compared to the original MailTarget, the following options aren't implemented: - PickupDirectory - NTLM auth * MailKit gives more control of the sockets, so you get the `secureSocketOption` option for free!
OElite.Web
OElite Web API SDK for OElite Platform based application development

GitHub repositories (54)

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

Repository Stars
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
bitwarden/server
The core infrastructure backend (API, database, Docker, etc).
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
duplicati/duplicati
Store securely encrypted backups in the cloud!
nopSolutions/nopCommerce
The most popular open-source eCommerce shopping cart solution based on ASP.NET Core

Version History

Version Downloads Last updated
2.11.1 214,212 3/16/2021
2.11.0 22,492 3/12/2021
2.10.1 646,070 1/2/2021
2.10.0 552,431 11/21/2020
2.9.0 1,026,058 9/12/2020
2.8.0 1,030,399 7/11/2020
2.7.0 803,653 5/30/2020
2.6.0 1,507,614 4/4/2020
2.5.2 364,772 3/14/2020
2.5.1 558,938 2/15/2020
2.5.0 467,552 1/18/2020
2.4.1 974,173 11/10/2019
2.4.0.1 77,288 11/5/2019
2.4.0 12,396 11/3/2019
2.3.2 240,390 10/12/2019
2.3.1.6 605,179 9/9/2019
2.3.1 47,608 9/8/2019
2.3.0 423,054 8/24/2019
2.2.0 1,233,699 6/11/2019
2.1.5.1 441,406 5/13/2019
2.1.4 333,473 4/13/2019
2.1.3 656,916 2/24/2019
2.1.2 684,911 12/30/2018
2.1.1 136,310 12/17/2018
2.1.0.3 93,385 12/7/2018
2.0.7 280,181 10/28/2018
2.0.6 844,185 8/4/2018
2.0.5 265,271 7/7/2018
2.0.4 366,998 5/25/2018
2.0.3 356,203 4/15/2018
2.0.2 118,980 3/18/2018
2.0.1 858,193 1/6/2018
2.0.0 74,738 12/22/2017
1.22.0 294,209 11/24/2017
1.20.0 221,576 10/28/2017
1.18.1.1 485,856 9/4/2017
1.18.1 11,476 9/3/2017
1.18.0 135,497 8/7/2017
1.16.2 348,071 7/1/2017
1.16.1 349,475 5/5/2017
1.16.0 72,201 4/21/2017
1.14.2 38,752 4/12/2017
1.12.0 116,399 3/12/2017
1.10.2 118,108 1/28/2017
1.10.1 153,712 12/4/2016
1.10.0 388,085 10/31/2016