mailutils

GNU Mailutils

Mailutils is a set of utilities and daemons for processing e-mail. All Mailutils programs are able to operate on mailboxes of various formats, including UNIX maildrops, maildir, and transparently accessed remote mailboxes (IMAP4, POP3, SMTP). Included is an implementation of the traditional UNIX mail reader, "mail", command line utilities such as "frm", "messages", "readmsg", as well as "sieve", a flexible utility for filtering the incoming mail. A special feature of Mailutils is an implementation of the MH Message Handling System, which combines the UNIX philosophy with a flexibility of Mailutils libraries, thus allowing to incorporate mail from remote mailboxes. For system administrators, Mailutils provides a set of daemons for delivering and reading electronic mail, including pop3d, imap4d and a universal mail delivery agent, called maidag.