Secure authentication (APOP) support; ability to retrieve headers only; retrieve file, HTML and text attachments; delete messages; custom headers support; content type, content transfer encoding, and charset support.

Collection of components for SMTP, IMAP4, POP3 and NNTP to send templated and databound emails, or receive and parse messages. By Active Up.

Sends emails that include authentication, multi-part mime, web pages and datagrids. By Advanced Intellect.

Download email from POP3 servers. Handles all character sets, authentication, decoding and email parsing. By Advanced Intellect.

Send, receive and manage email. Full S/MIME capability and MHTML support.

Provides .Net interface to the IMAP Protocol. The component includes fonctionality to copy, delete, move, mark read and mark unread messages, plus the hability to create, delete and list available mailboxes, in a hierarchical way.

SMTP and POP3 assemblies for integrating email capabilities into your applications. By devBiz Business Solutions.

Compose, send, retrieve and parse Internet Email messages. Includes assemblies for SMTP, POP3 and IMAP4. By Quicksoft Corp.

Check email address syntax and validate against the domain's mail server. By ComponentSpace.

E-mail queuing component for .NET. By ExclamationSoft Inc.

Email component with features beyond that of the built-in .NET libraries.

A native 100% managed class that check email in 2 step: first is check if the email has a valid syntax and if the syntax is valid then proceed with a special DNS lookup to check the validity of the email address. [Commercial]