The Mutt E-Mail Client

Features

Some of Mutt's features include:

• color support
• message threading
• MIME support (including RFC2047 support for encoded headers)
• PGP/MIME (RFC2015)
• various features to support mailing lists, including list-reply
• active development community
• POP3 support
• IMAP support
• full control of message headers when composing
• support for multiple mailbox formats (mbox, MMDF, MH, maildir)
• highly customizable, including keybindings and macros
• change configuration automatically based on recipients, current folder, etc.
• searches using regular expressions, including an internal pattern matching language
• Delivery Status Notification (DSN) support
• postpone message composition indefinetly for later recall
• easily include attachments when composing, even from the command line
• ability to specify alternate addresses for recognition of mail forwarded from other accounts, with ability to set the From: headers on replies/etc. accordingly
• multiple message tagging
• reply to or forward multiple messages at once
• .mailrc style configuration files
• easy to install (uses GNU autoconf)
• compiles against either curses/ncurses or S-lang
• translation into at least 20 languages
• small and efficient
• It's free! (no cost and GPL'ed)