mail/news client with RSS, chat and integrated spam filter support

BiDirectional support for Thunderbird

Glue between the Alpine email client and GnuPG cryptography

display filter for Internet messages

Extract and browse the URLs contained in an email (urlview replacement)

c-client support programs

email autoresponder

mail user agent for Emacs

manage mail domains/accounts/aliases for Dovecot and Postfix

verify electronic mail addresses

Milter for ensuring email message from matches mail from

View selective HTML-Mail

Provide CalDAV & CardDAV for TbSync

Provide Exchange ActiveSync (EAS v2.5 & v14.0) synchronization capabilities

Managing folder accounts

Reminder for emails

Create templates for Thunderbird

Thunderbird/Lightning Add-On to support MS Exchange Calendar etc.

Persistent sticky notes for Thunderbird

mail/news reader supporting IMAP for emacsen

mail/news reader supporting IMAP for emacsen (development version)

monitor mailboxes and/or newsgroups

Transition Package, xcite to elpa-xcite

Displays an image for each piece of mail in your mailbox

mail notification pop-up with configurable message scans

Yet Another Mail Processing Language