Email component for .NET.
IMAP component, POP3 component, SMTP component in a single package with SSL support. Allows sending, receiving and processing emails in .NET framework.
Supports S/MIME for sending signed emails, signed emails validation, encryption and decryption. Provides DKIM capabilities for email validation and signing.
Written entirely in managed code in C#.

Component features:

IMAP component, POP3 component, SMTP component in a single package!
Best MIME parser on the market
SSL support
Automatic attachment encoding/decoding
S/MIME: sending signed emails, signed emails validation, encryption and decryption
DKIM emails validation and signing
iCalendar appointments support
TNEF support (decodes winmail.dat files)
Create attachments from a file or byte array
Secure login (APOP, CRAM-MD5, DIGEST-MD5 support)
Proxy support: HTTP, Socks5, Socks4, Socks4a
IDLE: push email support for IMAP servers
OAuth 2.0 for web sites and OAuth 2.0 for installed applications support
2-legged OAuth and 3-legged OAuth support (including Gmail API helpers)
Template engine support
Fluent interface support for mail creation and sending
Support for displaying emails in Windows applications
IMAP protocol Gmail extensions
Bounce handling
Bayesian spam filter (over 99.5% accuracy)
Build-in HTML to plain text converter

Скачать Mail.dll бесплатно на странице загрузки.