MailKit 2.9.0

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 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, 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.

Requires NuGet 2.12 or higher.

Install-Package MailKit -Version 2.9.0
dotnet add package MailKit --version 2.9.0
<PackageReference Include="MailKit" Version="2.9.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MailKit --version 2.9.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

* Refactored Connect/ConnectAsync() logic to set timeouts *before* calling SslStream.AuthenticateAsClient() when connecting to an SSL-wrapped service. (issue #1059)
* Hardcode the value of SslProtocols.Tls13 for frameworks that do not support it and add it to the client's default SslProtocols. This adds TLS v1.3 support, by default, for apps using .NETStandard2.0 where the app project is built against a version of .NETCore that supports TLS v1.3. (issue #1058)
* Initialize IMAP SearchResults with the UIDVALIDITY value. (issue #1060)
* Make sure the ImapStream is not null (can be null if user calls Disconnect() causing IDLE to abort). (issue #1025)
* Case-insenitively match IMAP folder attribute flags (e.g. \HasNoChildren and \NoSelect).
* Added support for the IMAP SAVEDATE extension.
* Added support for detecting SMTP's REQUIRETLS extension.

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));

NuGet packages (282)

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 (44)

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).
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
dodyg/practical-aspnetcore
Practical samples of aspnet core 2.1, 2.2, 3.1 and 5.0 RC 2 projects you can use. Readme contains explanations on all projects.

Version History

Version Downloads Last updated
2.9.0 174,682 9/12/2020
2.8.0 425,330 7/11/2020
2.7.0 408,189 5/30/2020
2.6.0 806,404 4/4/2020
2.5.2 247,272 3/14/2020
2.5.1 386,904 2/15/2020
2.5.0 352,372 1/18/2020
2.4.1 716,408 11/10/2019
2.4.0.1 62,887 11/5/2019
2.4.0 10,666 11/3/2019
2.3.2 192,419 10/12/2019
2.3.1.6 469,783 9/9/2019
2.3.1 23,925 9/8/2019
2.3.0 341,368 8/24/2019
2.2.0 993,864 6/11/2019
2.1.5.1 360,572 5/13/2019
2.1.4 287,470 4/13/2019
2.1.3 544,972 2/24/2019
2.1.2 592,980 12/30/2018
2.1.1 120,779 12/17/2018
2.1.0.3 75,804 12/7/2018
2.0.7 233,781 10/28/2018
2.0.6 714,422 8/4/2018
2.0.5 240,146 7/7/2018
2.0.4 327,449 5/25/2018
2.0.3 321,244 4/15/2018
2.0.2 108,658 3/18/2018
2.0.1 719,035 1/6/2018
2.0.0 63,555 12/22/2017
1.22.0 263,346 11/24/2017
1.20.0 199,225 10/28/2017
1.18.1.1 449,274 9/4/2017
1.18.1 9,898 9/3/2017
1.18.0 121,015 8/7/2017
1.16.2 332,405 7/1/2017
1.16.1 322,565 5/5/2017
1.16.0 68,906 4/21/2017
1.14.2 36,812 4/12/2017
1.12.0 108,453 3/12/2017
1.10.2 109,315 1/28/2017
1.10.1 149,876 12/4/2016
1.10.0 371,315 10/31/2016