| Name | Description | 4.1 | 4.2 | 4.3 | 5.1 | 5.2 | 5.3 |
|---|
| abook | Abook is a text-based addressbook program designed to use with mutt mail client | X | X | X | X | | |
| bogofilter | The
bogofilter package implements a fast Bayesian spam filter along the lines
suggested by Paul Graham in his article "A Plan For Spam". | X | X | X | X | | |
| coolmail | 3D animated mail notificaion utility | X | X | X | X | X | X |
| elm | user mail agent | X | X | X | X | | |
| fetchmail | A full-featured, robust, remote-mail retrieval and forwarding utility | X | X | X | X | X | X |
| libytnef | ytnef is a program to work with procmail to decode TNEF streams | X | X | X | X | | |
| matt | A command line utility to mail files as base64 encoded attachments | X | X | X | X | X | X |
| mboxgrep | A small utility that scans a mailbox for messages matching a regular expression. | | X | X | X | | |
| metamail | metamail is a generic MIME package used by many mail readers. | X | | | | | |
| mls | A program that reads mailbox file in MBOX format and display various statistical data about it. | X | X | X | X | | |
| mutt | Mutt is a small but very powerful text-based mail client | X | X | X | X | X | X |
| netbiff | Netbiff is an advanced "biff," or mail notification utility, geared towards checking mailboxes across multiple machines. | X | X | X | X | | |
| pine | Simple interactive mail system | X | X | X | X | X | X |
| procmail | Versatile e-mail processor. | X | X | X | X | X | X |
| qpopper | a widely used server for the POP3 protocol | X | X | X | X | X | X |
| sharutils | shar makes so-called shell archives out of many files, preparing them for transmission by electronic mail services | X | X | X | X | X | X |
| smtpd | Obtuse SMTP daemon, storing agent. does simple collection of mail messages, for later forwarding by smtpfwdd (also included). | | X | X | X | | |
| sylpheed | A GTK+ based, lightweight, and fast email client. | X | X | X | X | | |
| xbuffy | X window version of biff | X | X | X | X | X | X |
| xmail | X window system interface to the mail program | X | | | | | |
| xmailbox | A version of xbiff with animation and sound effects | | | | | | |
| xmailtool | BSD-style mail reader for X | X | | | | | |
