MailKit 2.6.0

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, 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There is a newer version of this package available.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 2.6.0
dotnet add package MailKit --version 2.6.0
<PackageReference Include="MailKit" Version="2.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add MailKit --version 2.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

* Properly handle connection drops in SmtpClient.NoOp() and NoOpAsync() methods.
* Improved default SSL certificate validation logic to be more secure and to recognize the most commonly used mail servers even if their Root CA Certificates are not available on the system.
* SslHandshakeException's Message has been improved to be based on the errors reported in the ServerCertificateValidationCallback and also now has 2 new X509Certificate properties which represent the ServerCertificate and the RootCertificateAuthority in order to help developers diagnose problems. (issue #1002)
* Improved the IMAP PreviewText to extract text from HTML bodies. (issue #1001)
* Renamed MessageSummaryItems.Id to MessageSummaryItems.EmailId to better map to the property name used in the IMAP OBJECTID specification.
* Updated NetworkStream.ReadAsync() and WriteAsync() methods to make use of timeouts. (issue #827)

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 (298)

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 (49)

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 ASP.NET Core 2.1, 2.2, 3.1, and 5.0 projects you can use. Readme contains explanations on all projects.

Version History

Version Downloads Last updated
2.10.0 11,133 11/21/2020
2.9.0 422,450 9/12/2020
2.8.0 558,752 7/11/2020
2.7.0 488,388 5/30/2020
2.6.0 935,924 4/4/2020
2.5.2 268,787 3/14/2020
2.5.1 425,147 2/15/2020
2.5.0 380,352 1/18/2020
2.4.1 768,345 11/10/2019
2.4.0.1 65,499 11/5/2019
2.4.0 11,070 11/3/2019
2.3.2 202,912 10/12/2019
2.3.1.6 495,847 9/9/2019
2.3.1 27,662 9/8/2019
2.3.0 359,403 8/24/2019
2.2.0 1,043,728 6/11/2019
2.1.5.1 373,912 5/13/2019
2.1.4 298,671 4/13/2019
2.1.3 567,417 2/24/2019
2.1.2 614,828 12/30/2018
2.1.1 125,072 12/17/2018
2.1.0.3 79,984 12/7/2018
2.0.7 247,962 10/28/2018
2.0.6 747,158 8/4/2018
2.0.5 245,846 7/7/2018
2.0.4 337,653 5/25/2018
2.0.3 329,077 4/15/2018
2.0.2 111,334 3/18/2018
2.0.1 750,860 1/6/2018
2.0.0 66,237 12/22/2017
1.22.0 270,017 11/24/2017
1.20.0 205,181 10/28/2017
1.18.1.1 456,322 9/4/2017
1.18.1 10,111 9/3/2017
1.18.0 124,603 8/7/2017
1.16.2 337,287 7/1/2017
1.16.1 329,749 5/5/2017
1.16.0 69,584 4/21/2017
1.14.2 37,106 4/12/2017
1.12.0 111,369 3/12/2017
1.10.2 113,021 1/28/2017
1.10.1 150,814 12/4/2016
1.10.0 374,967 10/31/2016