Wanderlust is a mail/news management system on emacsen. It supports IMAP4rev1 (RFC2060), NNTP, POP and local message files.

The main features of Wanderlust:

- Pure elisp implementation. - Supports IMAP4rev1, NNTP, POP (POP3/APOP), MH and Maildir format. - Unified access method to messages based on Mew-like Folder Specification. - Mew-like Key-bind and mark handling. - Manages unread messages. - Interactive thread display. - Folder Mode shows the list of subscribed folders. - Message Cache, Disconnected Operation. - MH-like FCC. (Fcc: %Backup and Fcc: $Backup is allowed). - MIME compliant (by SEMI). - Transmission of news and mail are unified by Message transmitting draft. - Graphical list of folders. - View a part of message without retrieving the whole message (IMAP4). - Server-side message look up (IMAP4). Multi-byte characters are allowed. - Virtual Folders. - Supports compressed folder using common archiving utilities. - Old articles in folders are automatically removed/archived (Expiration). - Automatic re-file. - Template function makes it convenient to send fixed form messages.