Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet. In style it is similar to Smail 3, but its facilities are more general. There is a great deal of flexibility in the way mail can be routed, and there are extensive facilities for checking incoming mail.

Email::MessageID generates recommended message-ids to identify a message uniquely.

This package provides an Emacs-based interface to the Notmuch mail system.

This package provides tools for the conversion of Outlook Express data files to standard mailbox format.

GNU Mailutils is a collection of programs for managing, viewing and processing electronic mail. It contains both utilities and server daemons and all operate in a protocol-agnostic way. The underlying libraries are also available, simplifying the addition of mail capabilities to new software. GNU Mailutils provides the following commands:

• dotlock

• decodemail

• frm

• from

• guimb

• mail

• mailutils

• mailutils-config

• messages

• mimeview

• movemail

• popauth

• putmail

• readmsg

• sieve

This package provides a TNEF stream reader library and related tools to process winmail.dat files.

GNU Mailman is software for managing email discussion and mailing lists. Both users and administrators generally perform their actions in a web interface, although email and command-line interfaces are also provided. The system features built-in archiving, automatic bounce processing, content filtering, digest delivery, and more.

alterMIME is a small program which is used to alter your mime-encoded mailpack. What can alterMIME do?

1. Insert disclaimers,

2. insert arbitrary X-headers,

3. modify existing headers,

4. remove attachments based on filename or content-type,

5. replace attachments based on filename.

.

ripMIME is a small program to extract the attached files out of a MIME-encoded email package.

Mb2md is a Perl script that takes one or more mbox format files and converts them to maildir format directories.

DKIMproxy is an SMTP proxy that signs and verifies Internet mail using the Mail::DKIM Perl module. It comprises two separate proxies: an outbound proxy for signing outgoing email, and an inbound proxy for verifying signatures of incoming messages.

It was designed for Postfix, but can be used to add DKIM support to nearly any existing mail server. With Postfix, the proxies can operate as either Before-Queue or After-Queue content filters.

dovecot-libsodium-plugin provides a libsodium password hashing scheme (such as scrypt) plug-in for Dovecot.

Headers of the Linux-Libre kernel.

Guile is the GNU Ubiquitous Intelligent Language for Extensions, the official extension language of the GNU system. It is an implementation of the Scheme language which can be easily embedded in other applications to provide a convenient means of extending the functionality of the application without requiring the source code to be rewritten.

Binaries used to bootstrap the distribution.

Guile is the GNU Ubiquitous Intelligent Language for Extensions, the official extension language of the GNU system. It is an implementation of the Scheme language which can be easily embedded in other applications to provide a convenient means of extending the functionality of the application without requiring the source code to be rewritten.

GNU Binutils is a collection of tools for working with binary files. Perhaps the most notable are "ld", a linker, and "as", an assembler. Other tools include programs to display binary profiling information, list the strings in a binary file, and utilities for working with archives. The "bfd" library for working with executable and object formats is also included.

Tarballs containing all the bootstrap binaries

Guile is the GNU Ubiquitous Intelligent Language for Extensions, the official extension language of the GNU system. It is an implementation of the Scheme language which can be easily embedded in other applications to provide a convenient means of extending the functionality of the application without requiring the source code to be rewritten.

mandoc is a suite of tools compiling mdoc, the roff macro language of choice for BSD manual pages, and man, the predominant historical language for UNIX manuals. It is small and quite fast. The main component of the toolset is the mandoc utility program, based on the libmandoc validating compiler, to format output for UTF-8 and ASCII UNIX terminals, HTML 5, PostScript, and PDF. Additional tools include the man viewer, and apropos and whatis.

XMLtoMan and XMLMantoHTML are two small scripts to convert xml to man pages in groff format or html. It features the usual man page items such as description, options, see also, etc.

GNU help2man is a program that converts the output of standard "--help" and "--version" command-line arguments into a manual page automatically.

This package provides traditional Unix "man pages" documenting the Linux kernel and C library interfaces employed by user-space programs.

qman is a modern, full-featured manual page viewer featuring hyperlinks,web browser like navigation, a table of contents for each page, incremental search, on-line help, and more. It also strives to be fast and tiny, so that it can be used everywhere.

Features:

• Index page that displays all manual pages available on the system, sorted alphabetically and organised by section

• Pages for apropos and whatis results

• Hyperlinks to other manual pages

• Hyperlinks for URLs and email addresses

• Hyperlinks to files or directories in the local filesystem

• In-page hyperlinks

• A table of contents for each manual page

• Incremental search for manual pages

• Incremental free page text search

• Command-line options similar to those of man (most importantly, -k and -f)

• Keyboard mappings similar to those of less

• Mouse support

• Navigation history

• On-line help

• Fully configurable using INI-style config files

• Manual page