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Jul 20, 2023
- Abook - Addressbook program with mutt mail client support
- Adcomplain - Complain about inappropriate commercial use (f.e. SPAM) of usenet/e-mail
- Addresses-goodies - Goodies for addressbook for GNUstep
- Addresses - Versatile addressbook for GNUstep
- Aerc - Email client for your terminal
- Akpop3d - POP3 daemon aimed to be small and secure
- Alpine -
- Amavis-logwatch - Amavisd-new log parser
- Anomy-sanitizer - Sanitize and clean incoming/outgoing mail
- Antivirus-milter - Sendmail milter wich uses McAfee Virus Scan or clamav
- Anubis - Outgoing SMTP mail processor
- Archivemail - Archive and compress old email
- Archiveopteryx-devel - Advanced PostgreSQL-based IMAP/POP server
- Archiveopteryx - Advanced PostgreSQL-based IMAP/POP server
- Archivesmtp - SMTP mail archiver
- Archmbox - Email archiver that parses mailboxes and performs actions
- Ask - Anti Spam Killer content filtering
- Asmail - Biff-type program, designed to match AfterStep
- Assp - Anti-Spam SMTP Proxy
- Astroid - Graphical email client for notmuch, inspired by sup and others
- Automx - Handles mail account profile requests from mail clients
- Autorespond - Simple autoresponder for qmail
- Avenger - Anti-spam SMTP server
- Balsa - Mail reader for the GNOME desktop
- Batv-milter - Milter for BATV (Bounce Address Tag Validation)
- Bayespam - Qmail spam filter written in Perl using Bayesian classification
- Bbmail - Tool intended for Blackbox that checks for new mail
- Biabam - Command-line attachment mailer
- Bincimap - Light-weight IMAP server for Maildir
- Bmf - Fast Bayesian Mail Filter compatible with maildrop and procmail
- Bogofilter-bdb - Fast, teachable, learning spam detector
- Bogofilter-kc -
- Bogofilter-sqlite -
- Bogofilter-tc -
- Bogofilter -
- Bsfilter - Bayesian spam filter written in Ruby
- Bsmtp - Batch SMTP support for sendmail, incoming and outgoing
- Bulk_mailer - Speeds delivery to mailing lists by sorting & batching addresses
- C-sig - Signature insertion tool for Emacs
- Cclient - C-client mail access routines by Mark Crispin
- Chk4mail - Quickly check multiple folders for new email
- Claws-mail-acpi_notifier - ACPI mail LED notifier plugin for Claws Mail
- Claws-mail-address_keeper - Recipient addresses keeper plugin for Claws Mail
- Claws-mail-archive - Mail archiver plugin for Claws Mail
- Claws-mail-archiver - Mail archiver plugin for Claws Mail
- Claws-mail-att_remover - Attachments removing plugin for Claws Mail
- Claws-mail-attach_warner - Not attached file warning plugin for Claws Mail
- Claws-mail-attachwarner - Not attached file warning plugin for Claws Mail
- Claws-mail-bogofilter - Spam filtering plugin for Claws Mail
- Claws-mail-bsfilter - Spam filtering, bsfilter based plugin for Claws Mail
- Claws-mail-clamd - ClamAV based antivirus plugin for Claws Mail
- Claws-mail-dillo - Viewing of html messages using the Dillo web browser
- Claws-mail-fetchinfo - Header insertion plugin for Claws Mail
- Claws-mail-gdata - Plugin providing Google Contacts in the Tab-address completion
- Claws-mail-keyword_warner - Configurable keyword warning plugin for Claws Mail
- Claws-mail-libravatar - Avatar display plugin for Claws Mail
- Claws-mail-litehtml_viewer - Viewer plugin for HTML emails, using the litehtml library
- Claws-mail-mailmbox - Mbox maildir plugin for Claws Mail
- Claws-mail-managesieve - Sieve filters manager for Claws Mail
- Claws-mail-newmail - Message header summary logging plugin for Claws Mail
- Claws-mail-notification - New mail notification plugin for Claws Mail
- Claws-mail-pdf_viewer - PDF and PostScript viewer plugin for Claws Mail
- Claws-mail-perl - Perl filtering plugin for Claws Mail
- Claws-mail-pgp - PGP plugins for Claws Mail
- Claws-mail-plugins -
- Claws-mail-python - Python scripting plugin for Claws Mail
- Claws-mail-rssyl - RSS/Atom feed reader plugin for Claws Mail
- Claws-mail-spam_report - Spam report plugin for Claws Mail
- Claws-mail-spamassassin - SpamAssassin plugin for Claws Mail
- Claws-mail-spamreport - Spam report plugin for Claws Mail
- Claws-mail-tnef - TNEF attachment format parser plugin for Claws Mail
- Claws-mail-tnef_parse - TNEF attachment format parser plugin for Claws Mail
- Claws-mail-vcalendar -
- Claws-mail - Lightweight and featureful GTK+ based e-mail and news client
- Clawsker - Applet to edit Claws Mail's hidden preferences
- Cleanup-maildir - Script for cleaning up mails in Maildir folders based on arival date
- Cone - Console based mail client with POP3/IMAP/SMAP support
- Coolmail - Xbiff like mail tool with animated 3D graphics
- Courier-analog - Courier log analyzer
- Courier-authlib-vchkpw - Vpopmail/vchkpw support for the Courier authentication library
- Courier-imap - IMAP (and POP3) server that provides access to Maildir mailboxes
- Courier-pythonfilter - Framework for courier filter development in python
- Courier - Courier SMTP IMAP POP3 HTTP mail server suite
- Couriergraph - RRDtool frontend for Courier statistics
- Crm114 - Markov based SpamFilter
- Cvsmail - Small program to add cvsweb links to FreeBSD commit messages
- Cyrus-imapd23 - Cyrus mail server, supporting POP3 and IMAP4 protocols
- Cyrus-imapd24 - Cyrus mail server, supporting POP3 and IMAP4 protocols
- Cyrus-imapd25 - Cyrus mail server, supporting POP3 and IMAP4 protocols
- Cyrus-imapd30 - Cyrus mail server, supporting POP3 and IMAP4 protocols
- Cyrus-imapd32 - Cyrus mail server, supporting POP3 and IMAP4 protocols
- Cyrus-imapd34 - Cyrus mail server, supporting POP3 and IMAP4 protocols ${COMMENT_${FLAVOR}}
- Cyrus-imapd36 - Cyrus mail server, supporting POP3 and IMAP4 protocols ${COMMENT_${FLAVOR}}
- Cyrus-imapd38 - Cyrus mail server, supporting POP3 and IMAP4 protocols ${COMMENT_${FLAVOR}}
- Cyrus2courier - Cyrus-IMAP to Maildir++ conversion utility
- Cyrus2dovecot - Convert Cyrus folders to Dovecot
- Datovka - Qt re-implementation of Datovka
- Davmail - POP/IMAP/SMTP/Caldav/Carddav/LDAP Exchange Gateway
- Dbmail - SQL database-based mail system (POP3 and IMAP)
- Dcc-dccd - Distributed Checksum Clearinghouse bulk email detector
- Deforaos-mailer - DeforaOS desktop mail client
- Delatt - Strip attachments from email
- Dk-milter - Domainkeys milter for Sendmail
- Dkfilter - Domainkeys filter for Postfix
- Dkimproxy - DKIM filter for Postfix
- Dma - DragonFly Mail Agent, a small MTA for local/outbound mail
- Dmarcts-report-parser - Perl based tool to parse DMARC reports
- Dot-forward - Dot-forward reads sendmail's .forward files under qmail
- Dovecot-coi - Dovecot COI (Chat-over-IMAP) plugin
- Dovecot-fts-elastic - Dovecot FTS plugin for using ElasticSearch 6 or 7
- Dovecot-fts-flatcurve - Dovecot FTS plugin based on Xapian
- Dovecot-fts-xapian - Dovecot FTS plugin based on Xapian
- Dovecot-pigeonhole - Sieve plugin for the Dovecot 'deliver' LDA and LMTP
- Dovecot-xaps - Apple push notifications plugin for dovecot
- Dovecot - Secure, fast and powerful IMAP and POP3 server
- Dspam - Bayesian spam filter
- Ecartis - The Ecartis Listserver / Mailing List Manager
- Elm - Once-popular mail user agent, version 2.5.x
- Emailrelay - Simple SMTP proxy and store-and-forward MTA
- Emil - Mail format/encoding converter
- Enma - Sender authentication milter supporting SPF and Sender ID
- Eps - Email Parsing System
- Epstools - EPS (Email Parsing System) sample tools
- Evolution-ews - Evolution Microsoft Exchange plugin through Exchange Web Services
- Evolution - Integrated mail, calendar and address book distributed suite
- Exilog - Tool to centralize and visualize Exim logs with a web front end
- Exim-doc-html - Documentation for the Exim MTA in multiple formats
- Exim-doc-pdf -
- Exim-doc-postscript -
- Exim-ldap2 -
- Exim-monitor - The Exim monitor for the Exim MTA
- Exim-mysql -
- Exim-postgresql -
- Exim-sa-exim -
- Exim-sqlite -
- Exim -
- Exipick - Display messages from Exim queue based on a variety of criteria
- Exmh2 -
- Ez-pine-gpg - Set of scripts to use gpg with Pine
- Ezmlm-idx - Improved version of the ezmlm mailing list manager
- Ezmlm - Easy-to-use, high-speed mailing list manager for qmail
- Faces - Visual mail, user, and print face server
- Fastforward - Fastforward handles qmail forwarding according to a cdb database
- Fdm - Fetches and delivers mail
- Fetchmail -
- Fetchmailconf - Python-based GUI to configure fetchmail
- Filtermail - Filter mail on a POP3 server saves downloading spam
- Findmaildirs - Simple utility to create list of maildirs for mutt
- Geary - Mail client for GNOME
- Gensig - Random .signature generator
- Getmail - POP3/IMAP4 mail retriever with Maildir and command delivery
- Getmail6 - POP3/IMAP4 mail retriever (Python3 fork)
- Gmime26-sharp - Mono bindings for gmime
- Gmime26 -
- Gmime30 - Library (written in C) for parsing and creating messages using MIME
- Gnarwl - Email autoresponder that gets data from LDAP
- Gnubiff - Mail notification program for Gnome
- Gnumail - GNUstep mail client
- Gotmail - Script to fetch mail from a Hotmail or MSN mailbox
- Grepmail - Search mailboxes for a given regexp and display matching emails
- Greyfix - Greylisting policy daemon for Postfix
- Greylite - Modified greylisting for qmail and for any other MDA
- Gubby - Program showing where new mail has been placed
- Hashcash - Anti-spam / denial of service counter-measure tool
- Hbiff - Replacement for xbiff that handles popup window with mail headers
- Heirloom-mailx - BSD mail utility with MIME, IMAP, POP3, SMTP, and S/MIME extensions
- Ifile - Application of machine learning to e-mail filtering
- Im - Set of user interfaces of Email and NetNews
- Imap-uw - University of Washington IMAP4rev1/POP2/POP3 mail servers
- Imapdedup - Duplicate email message remover
- Imapfilter - IMAP mail filtering utility
- Imapsync - IMAP synchronization, copy or migration tool
- Imaptools - Tools and scripts to use with IMAP servers
- Imaputils - Number of tools and scripts for use with IMAP servers
- Isbg - Scan an IMAP inbox for spam using SpamAssassin
- Isoqlog - Qmail, postfix, sendmail, exim MTA log analysis program
- Isync - Maintain local copies of remote IMAP folders w/synchronized flags
- James - Java SMTP and POP3 Mail server and NNTP News server
- Jamlib - JAM subroutine library
- Jmba - Junk Mail Buffering Agent
- Junkfilter - Spam filtering software for procmail
- Jwsmtp - C++ library for sending email
- Lbdb - Tools for use with mutt external mail address query feature
- Lens - Mail filter written in Ruby
- Libcmime - Lightweight C mime library
- Libdkim - DKIM (DomainKeys Identified Mail) library
- Libdomainkeys - DomainKeys library
- Libesmtp - Library for posting electronic mail
- Libetpan - Mail framework for C language
- Libmilter - Library providing Sendmail Mail Filter API
- Libpst - Tool for converting Outlook .pst files to mbox and other formats
- Librfc822 - Complete parser for RFC822 addresses
- Libsieve - Library for parsing, sorting, and filtering mail
- Libspamtest - Kaspersky Anti-Spam 3.x library
- Libspf - Sender Policy Framework (SPF) library and client
- Libspf2 - Sender Policy Framework 2 C Implementation
- Libsrs2 - Sender Rewriting Scheme 2 C Implementation
- Libsrs_alt -
- Libvmime - All-in-one Internet mail library
- Listadmin - Command-line alternative to Mailman Web interface
- Lmtp2nntp - OSSP mail to news gateway
- Lookout - Convert Outlook97 addressbook export files to KDE KAB/GNOME gnomecard
- Lurker - Mailing list archiver
- Mail-expire - Expire old mails from mailboxes
- Mail2sms - Mail to SMS converter
- Mailagent - Sophisticated automatic mail-processing tool
- Maildrop - Mail delivery agent (MDA) with filtering abilities
- Mailest - Hyper Estraier backend for Mew
- Mailfmt - Remove leading quotations from mail/news and wrap lines to fixed width
- Mailfromd - Mail filtering daemon for Sendmail, Postfix, and MeTA1
- Mailfront - Mail server network protocol front-ends
- Mailgraph - RRDtool frontend for Postfix statistics
- Mailhog - MailHog development mail server
- Mailman-exim4 -
- Mailman-postfix -
- Mailman - Mailing list manager with user-friendly web front-end
- Mailman3 - GNU Mailing List Management System, Core
- Mailmgr - Sendmail Analysis Report Generator
- Mailpile - Locally hosted web-browser based mail client
- Mailpit - Mailpit development mail server
- Mailscanner - Powerful virus/spam scanning framework for mail gateways
- Mailslurper - Local, web-based mail server application. Slurp mails into oblivion!
- Mailsync - Keeps collection of mailboxes synchronized
- Mailutils - Utilities, daemons, and filters for processing e-mail
- Mailx - Mail command with mailx extensions
- Mairix - Indexing and searching in Maildir, MH, or mbox folders
- Masqmail - Mail server for hosts, not permanently connected to the internet
- Mb2md - Converts mbox mailboxes to Maildir
- Mblaze - Unix utilities to deal with Maildir
- Mbox2imap - Upload email stored in mbox file format to an IMAP server
- Mbox2mdir - Mbox to qmail's Maildir converter written in C++
- Mboxgrep - Utility to scan mailboxes for messages matching a regular expression
- Mboxstats - Creates top-10 lists of the messages in a mailbox
- Mbx2mbox - MS Outlook Express .mbx to mbox file converter
- Mdpop3d - Simple and small POP3 daemon implementation with Maildir support
- Mess822 - RFC 822 mail message parsing library and rewriting utilities
- Meta1 - Secure and efficient mail gateway
- Metamail - Implementation of MIME, the Multipurpose Internet Mail Extensions
- Mew-devel - Messaging in the Emacs World for emacs (Development Version)
- Mew - Messaging in the Emacs World for emacs
- Milter-bogom - Simple sendmail milter to interface bogofilter
- Milter-callback - Milter to perform a envelope-from sender verification on target MX
- Milter-greylist - Easy-to-use greylist milter for sendmail and postfix
- Milter-manager - Super milter that can invoke several milters selectively
- Milter-regex - Milter plugin to sendmail for regular expression filtering
- Milter-skem - Cache earlier sendmail's verdicts for the relays
- Mime-construct - Construct and optionally send MIME messages from command line
- Mime4j - Java parser for e-mail message streams
- Mimedefang - Milter based anti-spam and anti-virus filtering program
- Mini_sendmail - Tiny MTA with only smart relay capability
- Minimalist - Minimalistic mailing list manager
- Missey - Secure small and high performance POP3 server
- Mlmmj-archive-mid - CGI helping mapping a message id to an archived mail
- Mlmmj-archiver - Simple mailing archiver designed for mlmmj
- Mlmmj-webview - Tiny web frontend for mlmmj
- Mlmmj - Simple and slim mailing list manager
- Mls - Program for generating various statistics on emails
- Mmh - CLI mail user agent, fork from nmh
- Mmr - Curses based MIME Mail Reader
- Mpop - Small and fast POP3 client
- Mreport - Sendmail logfile summary tool
- Msgconvert - Convert .MSG files to multipart MIME messages (mbox)
- Msglint - RFC 822/MIME/DSN/MDN/Tracking-Status message validator
- Msmtp - SMTP plugin for MUAs
- Mu - Mail searching frontend for Xapian
- Mu4e-maildirs - Maildirs extension for Mu4e
- Mu4e - Emacs frontend for Mu
- Mulberry - Scalable high-performance GUI Internet Mail User Agent
- Mutt - Small but powerful text based program for read/writing e-mail
- Mutt_vc_query -
- Muttils - Python utilities for console mail clients (eg. mutt)
- Nbsmtp - Simple program for outgoing SMTP delivery
- Neomutt - Bringing together all the Mutt Code
- Nextcloud-mail - Mail app for Nextcloud
- Nmh-devel - Cleaned up MH mailer suite
- Nmh - Cleaned up MH mailer suite
- Noattach - Attachment filter for Sendmail Milter
- Nocc - Webmail system which access POP3 and IMAP mail servers
- Nohtml - Strip HTML attachments from email
- Normalizemime - Mime normalizer to be used as a preprocessor for email classification
- Notmuch-emacs - Emacs major-mode for the Notmuch email search and tagging application
- Notmuch-mutt - Integrates the Notmuch email search and tagging application with Mutt
- Notmuch -
- Nullmailer - MTA for hosts which relay to a fixed set of smart relays
- Nullpop - POP3 server that allows logins, but never returns any email
- Offlineimap - Powerful IMAP/Maildir synchronization and reader support
- Openarc - Library to validate use of certain identifiers in messages
- Opendkim - DKIM library and milter implementation
- Opendmarc - DMARC library and milter implementation
- Openemm2013 - OpenEMM a email marketing enterprise app
- Openemm2015 - OpenEMM a email marketing enterprise app
- Opensmtpd-extras-filter-clamav -
- Opensmtpd-extras-filter-dkim -
- Opensmtpd-extras-filter-dnsbl -
- Opensmtpd-extras-filter-lua -
- Opensmtpd-extras-filter-monkey -
- Opensmtpd-extras-filter-pause -
- Opensmtpd-extras-filter-perl -
- Opensmtpd-extras-filter-python -
- Opensmtpd-extras-filter-regex -
- Opensmtpd-extras-filter-spamassassin -
- Opensmtpd-extras-queue-python -
- Opensmtpd-extras-queue-ram -
- Opensmtpd-extras-scheduler-python -
- Opensmtpd-extras-scheduler-ram -
- Opensmtpd-extras-table-ldap -
- Opensmtpd-extras-table-mysql - MySQL table support for OpenSMTPD
- Opensmtpd-extras-table-passwd -
- Opensmtpd-extras-table-postgresql - PostgreSQL table support for OpenSMTPD
- Opensmtpd-extras-table-python - Python table support for OpenSMTPD
- Opensmtpd-extras-table-redis - Redis table support for OpenSMTPD
- Opensmtpd-extras-table-socketmap - Socketmap table support for OpenSMTPD
- Opensmtpd-extras-table-sqlite - SQLite table support for OpenSMTPD
- Opensmtpd-extras-tool-stats -
- Opensmtpd-extras -
- Opensmtpd-filter-rspamd - OpenSMTPD filter integration for the Rspamd daemon
- Opensmtpd-filter-senderscore - OpenSMTPD filter integration for the senderscore reputation
- Opensmtpd - Security- and simplicity-focused SMTP server from OpenBSD
- Osbf-lua - Email classifier, primarily for anti-spam
- Ovs - RRDtool frontend for mail statistics
- P5-cgp-cli - CommunigatePro Command Line Interface perl module
- P5-clamd - Connect to local clamd(8) service and send commands
- P5-dancer-plugin-email - Simple email handling for Dancer applications
- P5-dancer2-plugin-email - Simple email handling for Dancer2 applications
- P5-data-validate-email - Common email validation written in Perl
- P5-email-abstract - Unified interface to mail representations
- P5-email-address-list - RFC-close address list parsing
- P5-email-address-loose - Perl extension to make EmailAddress->parse() loose
- P5-email-address-usexs - Ensure that any code uses EmailAddressXS instead of EmailAddress
- P5-email-address-xs - Parse and format RFC 2822 email addresses and groups
- P5-email-address - RFC 2822 Address Parsing and Creation
- P5-email-addressparser - RFC 2822 Address Parsing and Creation
- P5-email-date-format - Produce RFC 2822 date strings
- P5-email-date - Find and Format Date Headers
- P5-email-delete - Delete Messages from Folders
- P5-email-filter - Library for creating easy email filters
- P5-email-find - Find RFC 822 email addresses in plain text
- P5-email-folder-imap - EmailFolder Access to IMAP Folders
- P5-email-folder-imaps - EmailFolder access to IMAP over SSL folders
- P5-email-folder-pop3 - EmailFolder access to POP3 folders
- P5-email-folder - Read all the messages from a folder as EmailSimple objects
- P5-email-foldertype-net - Recognize folder types for network based message protocols
- P5-email-foldertype - Determine the type of a mail folder
- P5-email-localdelivery-ezmlm - Deliver mail into ezmlm archives
- P5-email-localdelivery - Deliver a piece of email - simply
- P5-email-mime-attachment-stripper - Strip the attachments from a mail
- P5-email-mime-contenttype - Parse a MIME Content-Type Header
- P5-email-mime-createhtml - Multipart HTML Email builder
- P5-email-mime-creator-iso_2022_jp - Perl extension of EmailMIME mixin to create an iso-2022-jp mail
- P5-email-mime-encodings - Unified interface to MIME encoding and decoding
- P5-email-mime-rfc2047 - Correct handling of non-ASCII MIME headers
- P5-email-mime - Easy MIME message parsing
- P5-email-messageid - Generate world unique message-ids
- P5-email-outlook-message - Read e-mail messages stored as .msg files
- P5-email-reply - Perl module for replying to email
- P5-email-send - Perl module for simple email sending
- P5-email-sender-transport-smtp-tls - EmailSender with NetSMTPTLS (Eg. Gmail)
- P5-email-sender-transport-sqlite - Deliver mail to an SQLite db for testing
- P5-email-sender - Library for sending email
- P5-email-simple-fromhandle - Perl library for making email objects from a filehandle
- P5-email-simple - Simple parsing of RFC2822 message format and headers
- P5-email-stuffer - More casual approach to creating and sending Email
- P5-email-valid-loose - Variation of EmailValid which allows dot before at mark
- P5-email-valid - Check validity of Internet email addresses
- P5-fuzzyocr-devel - Plugin for SpamAssassin which scans image attachments for spam
- P5-gmail-imapd - Perl IMAP4 gateway to Google's webmail service
- P5-imap-admin - Perl module for basic IMAP server administration
- P5-imap-client - Advanced manipulation of IMAP services w/ referral support
- P5-imap-sieve - Perl module to edit Sieve scripts on an Cyrus IMAP server
- P5-lmap-cid2spf - Module to convert between Microsoft's Caller-ID and SPF
- P5-log-procmail - Perl extension for reading procmail logfiles
- P5-mime-altwords - Perl module for encoding and decoding MIME words
- P5-mime-charset - Charset Informations for MIME
- P5-mime-ecoencode - Perl extension for economical MIME Encoding
- P5-mime-encwords - Deal with RFC 2047 encoded words (improved)
- P5-mime-explode - Perl extension for explode MIME messages
- P5-mime-lite-html - Provide routine to transform a HTML page into a MIME mail
- P5-mime-lite-tt-html - Create html mail with MIMELite and TT
- P5-mime-lite-tt - TT enabled MIMELite wrapper
- P5-mime-lite - Simple interface for creating (not parsing!) MIME messages
- P5-mime-tools - Set of perl5 modules for MIME
- P5-mime-types - Perl extension for determining MIME types
- P5-mail-address-mobilejp - Utility to detect an e-mail is mobile one or not
- P5-mail-alias - MailAlias
- P5-mail-audit-attach - MailAudit plugin for attachment handling
- P5-mail-audit - Perl module for creating easy mail filters
- P5-mail-authenticationresults - Object Oriented Authentication-Results Headers
- P5-mail-box-imap4-ssl - Missing part of MailBoxIMAP4
- P5-mail-box-imap4 - Handle IMAP4 folders as client
- P5-mail-box-pop3 - Handle POP3 folders as client
- P5-mail-box-parser-c - Parsing folders for MailBox with C routines
- P5-mail-box - Perl module implementing a modern mail folder management
- P5-mail-bulkmail - Perl module for mailing lists
- P5-mail-checkuser - Perl module to check email addresses for validity
- P5-mail-dkim - Perl5 module to process and/or create DKIM email
- P5-mail-dmarc - Perl5 module to process and/or create DKIM email
- P5-mail-deliverystatus-bounceparser - Perl extension to analyze bounce messages
- P5-mail-domainkeys - Perl implementation of DomainKeys
- P5-mail-ezmlm - Perl module to allow object methods for ezmlm-idx mailing lists
- P5-mail-field-received - Perl5 modules for parsing of `Received' headers in e-mails
- P5-mail-filterxml - Perl module that allows writing mail filter rules in XML
- P5-mail-folder - Perl module for a folder-independant interface to email folders
- P5-mail-freshmeat - Perl module to parse daily newsletters from freshmeat.net
- P5-mail-gnupg - Perl5 interface to process and/or create PGP email
- P5-mail-graph - Perl module for drawing graphical stats for mails/spams
- P5-mail-imapclient - Perl5 module to talk to a IMAP4rev1 (RFC2060) server
- P5-mail-imaptalk - IMAP client interface with lots of features
- P5-mail-lmlm - List of Mailing Lists Manager
- P5-mail-listdetector - Perl module for detecting mailing list messages
- P5-mail-mailstats - Perl module to detect newer messages in procmail-generated mailboxes
- P5-mail-mbox-messageparser - Fast and simple mbox folder reader
- P5-mail-mboxparser - Module for working with UNIX-flavoured mailboxes
- P5-mail-message - General message object
- P5-mail-opendkim - Perl interface to OpenDKIM C library
- P5-mail-openrelay-simple - Check if a mail server runs as an open relay
- P5-mail-pop3client - Perl5 module to talk to a POP3 (RFC1939) server
- P5-mail-procmail - Perl5 module provides procmail-like tools
- P5-mail-procmailrc - Perl OO interface to procmail rc files
- P5-mail-rbl - Perl extension to access RBL-style host verification services
- P5-mail-rfc822-address - Perl5 module to validate RFC822 conformance of email addresses
- P5-mail-spf - Object-oriented implementation of Sender Policy Framework
- P5-mail-srs - Sender Rewriting Scheme
- P5-mail-sendeasy - Send plain/html e-mails through SMTP servers
- P5-mail-sender - Module for sending mails with attachments through an SMTP server
- P5-mail-sendmail - Perl module implementing a simple, platform-independent mailer
- P5-mail-spool - Pure Perl implementation of mail spooling, unspooling, and sending
- P5-mail-tools - Perl5 modules for dealing with Internet e-mail messages
- P5-mail-transport-dbx - Perl module to parse Outlook Express mailboxes
- P5-mail-transport - Use Mail Transfer Agents (MTAs)
- P5-mail-verify - Perl module to verify email addresses
- P5-mail-verp - Encodes and decodes Variable Envelope Return Paths (VERP) addresses
- P5-mail-webmail-gmail - Perl interface to Google webmail service
- P5-mojolicious-plugin-mail - Mojolicious plugin to send email
- P5-net-imap-client - Not so simple IMAP client library
- P5-net-imap-server - Single-threaded multiplexing IMAP server implementation
- P5-net-imap-simple-ssl - SSL support for NetIMAPSimple
- P5-net-imap-simple - Perl extension for simple IMAP account handling
- P5-net-lmtp - Local Mail Transfer Protocol Client
- P5-net-managesieve - ManageSieve Protocol Client
- P5-net-pop3-sslwrapper - Perl extension for simple POP3S wrapper for NetPOP3
- P5-net-qmtp - Perl module to provide a Quick Mail Transfer Protocol (QMTP) client
- P5-net-smtp-server - Native Perl SMTP Server
- P5-net-smtp-tls-butmaintained - SMTP client supporting TLS and AUTH
- P5-net-smtp-tls - SMTP client supporting TLS and AUTH
- P5-net-smtps - SSL/STARTTLS support for NetSMTP
- P5-net-smtp_auth - Simple Mail Transfer Protocol Client with AUTHentication
- P5-net-senderbase - Query the SenderBase service
- P5-net-server-mail - Implementation of SMTP, ESMTP, and LMTP protocols
- P5-poe-component-client-pop3 - Implement a POP3 client POE component
- P5-poe-component-client-smtp - SMTP client POE component
- P5-poe-component-smtp - SMTP Protocol Implementation
- P5-poe-filter-transparent-smtp - SMTP transparency POE filter
- P5-parse-mime - Perl extension to parse mime-types
- P5-parse-syslog-mail - Parse log messages generated by various MTAs
- P5-qmail-envelope - Examine and modify qmail envelope strings
- P5-ses - Perl module of Amazon Simple Email Services
- P5-sendmail-accessdb - Perl5 interface to the Sendmail access.db list
- P5-sendmail-milter - Module to write mail filters in Perl using sendmail's mail filter API
- P5-sisimai - Mail Analyzing Interface for bounce mails
- P5-test-email - Test Email Contents
- P5-uri-imap - Perl module for IMAP URI support
- P5-uri-imaps - Support IMAPS URI
- P5-www-gmail - Module that simplifies access to Gmail
- P5-www-hotmail - Module that simplifies access to Hotmail
- P5-qpsmtpd - Flexible SMTP daemon written in Perl and featuring a plugin API
- Panda-cclient - Mark Crispin's C-client mail access routines forked from UW
- Panda-imap - IMAP4rev1/POP2/POP3 mail servers forked from imap-uw
- Pantomime - Mail/MIME handling library for GNUstep
- Pathalias - Mail routing tools
- Pear-contact_vcard_build - PEAR class to build (create) and fetch vCard 2.1 and 3.0 text blocks
- Pear-contact_vcard_parse - PEAR class to parse vCard 2.1 and 3.0 files
- Pear-horde_imap_client - Horde IMAP abstraction interface
- Pear-horde_kolab_storage - Horde library for handling Kolab data stored on an IMAP server
- Pear-horde_listheaders - Horde List Headers Parsing Library
- Pear-horde_mail - Horde Mail Library
- Pear-horde_mail_autoconfig - Horde Mail Autoconfiguration
- Pear-horde_mapi - Horde MAPI utility library
- Pear-horde_mime - Horde MIME Library
- Pear-horde_mime_viewer - Horde MIME Viewer Library
- Pear-horde_smtp - Horde SMTP Client
- Pear-mime_type - PEAR class for dealing with MIME types
- Pear-mail - PEAR class that provides multiple interfaces for sending emails
- Pear-mail_mbox - PEAR Read and modify Unix MBOXes
- Pear-mail_mime - PEAR classes to create and decode MIME messages
- Pear-mail_queue - PEAR class for put mails in queue and send them later in background
- Pear-mail_mimedecode - Provides a class to decode mime messages
- Pear-net_cyrus - PEAR class to administer Cyrus IMAP servers
- Pear-net_imap - PEAR class that provides an implementation of the IMAP protocol
- Pear-net_lmtp - PEAR implementation of the RFC2033 LMTP protocol
- Pecl-mailparse - PECL extension to create and decode MIME messages
- Perdition - POP3 & IMAP4 proxy that can map users to multiple backend servers
- Pflogsumm - Postfix Log Entry Summarizer
- Pfqueue - Console-based tool for handling Postfix 1, Postfix 2, and Exim queues
- Php71-imap -
- Php72-imap -
- Php80-imap -
- Php81-imap -
- Php82-imap -
- Php83-imap -
- Phplist - Full-featured open-source newsletter manager
- Phpmailer - Full Featured Email Transfer Class for PHP
- Phpmailer6 - Full Featured Email Transfer Class for PHP
- Pine-pgp-filters - Simple sh-based filters to use GnuPG with Alpine
- Pm-lib - Collection of procmail plug-in modules
- Policyd2 - Policyd v2 is a multi-platform policy server for popular MTAs
- Popa3d-before-sendmail -
- Popa3d - Secure, performance, tiny POP3 daemon
- Popcheck - Preview and delete messages in POP3 mailbox
- Popfile - Automatic mail classification tool, acts as a POP3 proxy
- Poppassd - Server to allow users to change their password from within Eudora
- Poppwd - Implementation of the Eudora password changing protocol
- Popular - Suite of programs for setting up large POP3 server systems
- Postfinger - Postfix Configuration Summary Reporter
- Postfix-current - Experimental Postfix version ${COMMENT_${FLAVOR}}
- Postfix-logwatch - Postfix MTA log parser
- Postfix-policyd-sf - Anti-spam plugin for Postfix (written in C)
- Postfix-policyd-spf-perl - SPF policy service for Postfix written in Perl
- Postfix-policyd-spf-python - Pure Python Postfix policy daemon for SPF checking
- Postfix-policyd-weight - Weighted policy daemon for postfix
- Postfix-postfwd - Postfix firewall policy daemon
- Postfix - Secure alternative to widely-used Sendmail ${COMMENT_${FLAVOR}}
- Postfixadmin-lite -
- Postfixadmin - PHP web-based management tool for Postfix virtual domains and users
- Postfixadmin33-lite -
- Postfixadmin33 - PHP web-based management tool for Postfix virtual domains and users
- Postforward - Postfix SRS forwarding agent
- Postgrey - Greylisting policy server for Postfix
- Postsrsd - Postfix Sender Rewriting Scheme daemon
- Prayer - Prayer Webmail System
- Prepflog - Prepares logfiles in a sanitised format for pflogsumm and awstats
- Procmail-bgrb - BuGlessRB fork of the procmail local mail delivery agent
- Procmail - Local mail delivery agent
- Proxsmtp - Flexible SMTP filter which can act also as transparent proxy
- Py-products.mailhost - Zope.sendmail integration for Zope 2
- Py-products.securemailhost - Reimplementation of the standard Zope2 MailHost
- Py-afew - Initial tagging script for Notmuch mail
- Py-aiosmtpd - Asyncio based SMTP server
- Py-alot - Terminal MUA using Notmuch mail
- Py-authheaders - Generate email authentication headers
- Py-authres - Python module for RFC 5451 Authentication-Results headers
- Py-cyruslib - Cyrus imapd library for Python
- Py-django-mailbox - Easily ingest messages from POP3, IMAP, or local mailboxes
- Py-django-mailman3 - Libraries and templates for Django-based interfaces interacting with Mailman
- Py-dkimpy - Python library for DKIM email signing and verification
- Py-email-reply-parser - GitHubs Email Reply Parser library for python
- Py-email-validator - Robust email address syntax and deliverability validation library
- Py-flanker - Email address and MIME parsing library
- Py-flask-mail - Send SMTP email from a Flask web application
- Py-flufl.bounce - API for detecting the original bouncing email addresses from a bounce message
- Py-fuglu - Mail scanning daemon for Postfix written in Python
- Py-imapclient - Easy to use, Pythonic and complete IMAP client library
- Py-imaplib2 - Threaded Python IMAP4 client
- Py-libgmail - Library to provide access to Gmail via Python
- Py-mail-parser - Wrapper for email standard library
- Py-mailmanclient - Official Python bindings for the GNU Mailman 3 REST API
- Py-mailnag - Extensible mail notification daemon
- Py-mailsuite - Python package to simplify receiving, parsing, and sending email
- Py-managesieve3 - Implements an RFC-5804 Manage Sieve client
- Py-milter - Python interface to Sendmail milter API
- Py-notmuch - Python interface for the Notmuch email search and tagging library
- Py-notmuch2 - Pythonic bindings for the notmuch mail database using CFFI
- Py-offlineimap3 - Two-way synchronization of local Maildir and IMAP folders
- Py-postfix-mta-sts-resolver - TLS client policy for Postfix according to domain MTA-STS policy
- Py-ppolicy - PPolicy is tool for extending Postfix checking capabilities
- Py-premailer - Turns CSS blocks into style attributes
- Py-pyisemail - Simple, robust email validation
- Py-pymailq - Postfix queue control python tool
- Py-pysasl - Pure Python SASL client and server library
- Py-pyspf - SPF (Sender Policy Framework) implemented in Python
- Py-python-slimta - Python libraries to send, receive, and queue email
- Py-pyzmail - Easy mail library to parse, compose and send emails
- Py-rfc6555 - Happy Eyeballs Algorithm described in RFC 6555
- Py-spambayes - Bayesian anti-spam filter written in Python
- Py-spf-engine - SPF engine for Postfix policy server and milter implemented in Python
- Py-validate_email - Verifies if an email address is valid and really exists
- Py-zope.sendmail - Zope sendmail
- Pymsgauth - Automatically process qsecretary confirmation requests
- Pysieved - Python Managesieve Server
- Pyzor - Collaborative, networked system to detect and block spam
- Qconfirm - Filter spam by requesting confirmation from sender
- Qmail-activedir - Programs to allow qmail to authenticate users through a MS ad
- Qmail-auditor - Selective e-mail auditing for qmail by means of qmail-queue wrapping
- Qmail-autoresponder - Rate-limited autoresponder for qmail
- Qmail-conf - Configure various qmail services to run under daemontools
- Qmail-contrib - Contributed programs for qmail
- Qmail-dk - DomainKeys implementation for qmail
- Qmail-mysql - Secure, reliable, and fast MTA for UNIX systems with MySQL support
- Qmail-notify - Delayed delivery notification for qmail
- Qmail-qfilter - Front-end for qmail-queue to run messages through filters
- Qmail-rblchk - Qmail RBL filter
- Qmail-remove - Removes messages from your qmail queue based on a particular string
- Qmail-spamcontrol - Qmail MTA with SpamControl patches
- Qmail-tls - Secure, reliable, and fast MTA for UNIX systems with TLS support
- Qmail -
- Qmailadmin - CGI program for administering Qmail with vchkpw/vpopmail
- Qmailanalog - Tools to analyze qmail-send activity
- Qmailmrtg7 - Program to create mrtg graphs for qmail activity
- Qmhandle - Tool to view and manage a qmail queue
- Qmqtool - Tool to manipulate contents of a qmail queue
- Qpopper - Berkeley POP 3 server (now maintained by Qualcomm)
- Qsf - Small fast spam filter intended to be used with procmail
- Qsheff - Qmail-queue replacement to filter mail traffic
- Qtools - Tools to use in .qmail files
- Queue-fix - Repairs or generates a qmail queue structure
- Queue-repair - Qmail queue diagnostic and repair tool
- Rainloop - Modern and interactive webmail
- Ratelimit-policyd - Sender rate limit policy daemon for Postfix
- Raysfilter - Configurable filter for Sendmail Milter
- Razor-agents - Distributed, collaborative, spam detection and filtering network
- Rbl-milter - Milter that adds mail header warnings on mail from open-relays
- Rblcheck - Command-line interface to Paul Vixie's RBL filter
- Relaydb - Spam relay database
- Renattach - Rename or remove certain attachments or kill entire messages
- Rftp - Automatically reconstruct ftpmail- or bitftp-retrieved files
- Ripmime - Extracts attached files out of a MIME encoded email package
- Rmilter - Milter that performs rspamd, clamav, and other checks
- Roundcube-automatic_addressbook - Roundcube webmail automatic addressbook plugin
- Roundcube-calendar-kolab - Roundcube Calendar plugin from Kolab
- Roundcube-carddav - Roundcube CardDAV plugin
- Roundcube-classic - Larry skin/theme for Rouncube webmail
- Roundcube-contextmenu - RoundCube webmail contextmenu plugin
- Roundcube-html5_notifier - HTML5 desktop notifier plugin for roundcube
- Roundcube-identity_smtp - Roundcube plugin to setup different SMTP settings per identity
- Roundcube-larry - Larry skin/theme for Rouncube webmail
- Roundcube-login_info - Roundcube login info plugin
- Roundcube-markasjunk2 - Roundcube mark-as-junk / mark-as-not-junk plugin
- Roundcube-sauserprefs - Roundcube plugin to manage SpamAssassin prefs
- Roundcube-sieverules - Roundcube webmail sieve plugin
- Roundcube-thunderbird_labels - Thunderbird Labels plugin for RoundCube webmail
- Roundcube-twofactor_gauthenticator - Roundcube TOTP auth plugin
- Roundcube-veximaccountadmin - Roundcube vexim account admin plugin
- Roundcube-yubikey_auth - Roundcube yubikey auth plugin
- Roundcube - Fully skinnable XHTML/CSS webmail written in PHP
- Rspamd-devel - Fast spam filtering system dev version
- Rspamd - Fast spam filtering system
- Rss2email2 - Emails posts from subscribed RSS/Atom newsfeeds
- Rss2email3 - Emails posts from subscribed RSS/Atom newsfeeds
- Rubygem-actionmailbox60 - Receive and process incoming emails in Rails applications
- Rubygem-actionmailbox61 - Receive and process incoming emails in Rails applications
- Rubygem-actionmailbox70 - Receive and process incoming emails in Rails applications
- Rubygem-actionmailer4 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer5 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer50 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer52 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer60 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer61 - Easy email delivery and testing for Ruby
- Rubygem-actionmailer70 - Compose, deliver, and test emails on Rails
- Rubygem-email_reply_parser-discourse - Email Reply Parser
- Rubygem-email_reply_parser - Library to parse plain text email content
- Rubygem-email_reply_trimmer - Library to trim replies from plain text email
- Rubygem-exception_notification - Exception notification for Rails apps
- Rubygem-gitlab-mail_room - Proxy email (gmail) from IMAP to a delivery method
- Rubygem-mail - Ruby email handler
- Rubygem-mail_room - Proxy email (gmail) from IMAP to a delivery method
- Rubygem-mailboxer - Send messages inside a web application
- Rubygem-mailfactory - Simple to use module for generating RGC compliant MIME mail
- Rubygem-mini_mime - Lightweight mime type lookup toy
- Rubygem-net-imap - Ruby client api for Internet Message Access Protocol
- Rubygem-net-pop - Ruby client library for POP3
- Rubygem-net-smtp - Simple Mail Transfer Protocol client library for Ruby
- Rubygem-pony - Express way to send mail from Ruby
- Rubygem-premailer-rails-rails5 - Improve the rendering of HTML emails
- Rubygem-premailer-rails-rails52 - Improve the rendering of HTML emails
- Rubygem-premailer-rails-rails60 - Improve the rendering of HTML emails
- Rubygem-premailer-rails-rails61 - Improve the rendering of HTML emails
- Rubygem-premailer-rails - Improve the rendering of HTML emails
- Rubygem-premailer-rails19-rails5 - Improve the rendering of HTML emails
- Rubygem-premailer-rails19-rails52 - Improve the rendering of HTML emails
- Rubygem-premailer - Improve the rendering of HTML emails
- Rubygem-rmail - Lightweight mail library
- Rubygem-roadie-rails-rails4 - Helper for generating HTML mails in Rails applications
- Rubygem-roadie-rails-rails52 - Helper for generating HTML mails in Rails applications
- Rubygem-roadie-rails-rails61 - Helper for generating HTML mails in Rails applications
- Rubygem-roadie-rails - Helper for generating HTML mails in Rails applications
- Rubygem-roadie - Helper for generating HTML mails
- Rubygem-roadie3 - Helper for generating HTML mails
- Rubygem-ruby-qmail - Ruby qmail library
- Rubygem-valid_email - ActiveModel Validation for email
- Rubygem-vmail - Vim interface to Gmail
- S-nail - Send and receive Internet mail
- Sa-stats - Generates top spam/ham rules fired for SpamAssassin installations
- Sa-utils - SpamAssassin nightly periodic maintenance
- Scam-backscatter - Address verification milter to prevent spam backscatter
- Sendmail-devel - Reliable, highly configurable mail transfer agent with utilities
- Sendmail - Reliable, highly configurable mail transfer agent with utilities
- Sendok - Generates qmail email addresses with timed cookies
- Sentinel - Sendmail milter API implementation
- Serialmail - Tools for passing mail across serial links
- Sgwi - PHP web interface to SQLGrey
- Sid-milter - Milter module for sid and spf
- Sieve-connect - Command-line client for the MANAGESIEVE protocol
- Sigrot - Util to rotate your mail/news signature
- Simscan - Fast Content/Anti-virus Scanner for qmail Written in C
- Slapd-cyrus - Slapd backend to translate DIT into Cyrus configuration
- Slimta - Configurable MTA based on the python-slimta libraries
- Sma - Program that analyses Sendmail log entries
- Smfsav-devel - Sendmail Sender Address Validator
- Smfsav - Sendmail Sender Address Validator
- Smtp-cli - Powerful SMTP command line client
- Smtp-gated - Proxy for SMTP sessions with virus and spam scan
- Smtpfeed - SMTP Fast Exploding External Deliverer for Sendmail
- Smtpmail - Tool to send e-mail via a remote smtp server
- Smtprc - Scanner for open SMTP relays
- Smtprelay - Simple Go SMTP relay/proxy server
- Smtptrapd - RFC 2821 compliant SMTP service that always returns a 4xx soft error
- Snappymail - Simple, modern, lightweight & fast web-based email client
- Sortmail - Useful tool for sorting mbox style mailboxes after date
- Spamass-ixhash - Plugin for SpamAssassin supporting iXhash
- Spamass-milter - Sendmail Milter (mail filter) plugin for SpamAssassin
- Spamass-rules - Custom rulesets for SpamAssassin
- Spamassassin-devel -
- Spamassassin-dqs - Real-Time DNSBL's that catch a bunch of additional spam
- Spamassassin -
- Spambnc - Set of procmail recipes which handle known/suspected spam
- Spamcup - Tool for automatic spam reporting via Spamcop.net
- Spamd - Traps spammers with a very slow smtp-login and return 4xx error
- Spamguard - MTA spam prevention program for qmail/postfix/sendmail
- Spamilter - Sendmail LibMilter filter to block spam
- Spamoracle -
- Spampd - Spamassassin SMTP Proxy
- Spamprobe - Spam detector using Bayesian analysis of word counts
- Spamstats - Tool to generate statistics for spamd of MailSpamAssassin
- Spfmilter - SPF milter for sendmail
- Spfval - SPF validator
- Spmfilter-clamav - ClamAV plugin for spmfilter
- Spmfilter - High-performance mail filtering framework written in C
- Sqlgrey - Greylisting policy server for Postfix using an SQL backend
- Squirrelmail-abook_import_export-plugin - Allows for the importing of addressbooks from a CSV (comma separated values) file
- Squirrelmail-askuserinfo-plugin - Ask user to enter Full name and Email address at initial logon
- Squirrelmail-avelsieve-plugin - SquirrelMail plugin for Server-Side Mail Filtering management
- Squirrelmail-calendar_file_backend-plugin - File backend for SquirrelMail Calendar plugin
- Squirrelmail-change_ldappass-plugin - Allows users to change their passwords stored in LDAP Tree
- Squirrelmail-change_sqlpass-plugin - Allows users to change their passwords stored in a SQL database
- Squirrelmail-check_quota-plugin - Check/display users' mail quota (filesystem, IMAP-based, and cPanel)
- Squirrelmail-compatibility-plugin - Required by many plugins for compatibility with SquirrelMail
- Squirrelmail-decode - Decoders to display extra character sets in SquirrelMail
- Squirrelmail-email_footer-plugin - Automatically appends footer to SquirrelMail-generated emails
- Squirrelmail-login_auth-plugin - Automatically log in user based on HTTP authentication
- Squirrelmail-login_notes-plugin - Place notes on the login screen
- Squirrelmail-mark_read-plugin - Provides one-click link to mark read/unread all mails in a folder
- Squirrelmail-multilogin-plugin - Allows manual selection of login server on login page
- Squirrelmail-notes-plugin - Allows you to create notes
- Squirrelmail-notify-plugin - Notify when new mail arrives
- Squirrelmail-password_forget-plugin - Prevent reuse of login details by browsers at public terminals
- Squirrelmail-plugins -
- Squirrelmail-pupdate-plugin - Checks for plugin updates by parsing the SM site
- Squirrelmail-qmailadmin_login-plugin - Using the QmailAdmin cgi interface from SquirrelMail
- Squirrelmail-quota_usage-plugin - View quota and current usage
- Squirrelmail-sasql-plugin - Edit SpamAssassin settings stored in an SQL DB
- Squirrelmail-secure_login-plugin - Automatically turn on SSL security during login
- Squirrelmail-shared_calendars-plugin -
- Squirrelmail-spam-buttons-plugin - Provides buttons with customizable action (for reporting spam, etc.)
- Squirrelmail-squirrel_logger-plugin - Logging functionality for your webmail interface
- Squirrelmail-timeout_user-plugin - Automatically logs a user out if they're idle for a set amount of time
- Squirrelmail-tmda-plugin - Adds TMDA support to SquirrelMail
- Squirrelmail-translations - NLS translations for Squirrelmail (mail/squirrelmail)
- Squirrelmail-unsafe_image_rules-plugin - Determines what unsafe (web) images will be shown
- Squirrelmail-user_special_mailboxes-plugin - Lets define folders to be displayed at the top of the folders list
- Squirrelmail-vlogin-plugin - Adds multi-site-hosting capabilities to SquirrelMail
- Squirrelmail-websearch-plugin - Plugin for Websearch
- Squirrelmail-wetteronline-plugin - Plugin for the weather in Germany
- Squirrelmail - Webmail system which accesses mail over IMAP
- Sqwebmail - CGI Webmail client for Maildirs
- Ssmtp - Extremely simple MTA to get mail off the system to a mail hub
- Surblhost - Check if a hostname is blacklisted
- Svnmailer - Tool to post subversion repository commit information
- Swaks - Swiss Army Knife SMTP transaction tester
- Sylpheed - Lightweight, featureful, and fast GTK+ based e-mail client
- Sympa - Electronic mailing list manager
- T-prot - TOFU Protection - Display Filter for RFC822 messages
- Textmail - Converts e-mail attachments to plain-text
- Thunderbird-dictionaries - Dictionaries for Mozilla Thunderbird
- Thunderbird - Mozilla Thunderbird is standalone mail and news that stands above
- Tlb - The List Batcher, a general purpose mail list delivery engine
- Tmda - Python-based SPAM reduction system
- Tmpmail - CLI for the creation and use of temporary mail addresses
- Tpop3d - Virtual-domain capable POP3 server supporting MySQL, PgSQL etc auth
- Trojita - Fast cross-platform IMAP e-mail client using Qt 5 toolkit
- Tumgreyspf - External policy checker for the postfix mail server
- Up-imapproxy - Caching IMAP proxy server
- Usendmail - Replacement for qmail's sendmail drop-in
- Vacation - Email autoresponder, similar to vacation from sendmail
- Vbsfilter - Vbs-attachment filter for Sendmail Milter
- Vexim - Web interface for managing virtual domains for exim
- Vmailmgr - Virtual domain manager for qmail
- Vpopmail - Easy virtual domain and authentication package for use with qmail
- Vqadmin - CGI-based Virtual Qmail Domains Administrator
- Vrfy - Verify mail address
- Wanderlust - Mail and news system for Emacs
- Websieve - Web based Cyrus IMAP user admin client
- Whoson - Implementation of `WHO iS ONline' protocol
- Wmbiff -
- Wmmaiload - Incoming mail monitor dockapp with a similar look to wmcpuload
- X-face-e21 - X-Face utilities for Emacs
- Xbuffy - Replacement for xbiff that handles multiple mail files
- Xcite - Exciting Cite for any Mail/News reading modes on Emacs
- Xfaces - Display shaped icons for mail spool contents
- Xfce4-mailwatch-plugin - Mail notification applet for the Xfce panel
- Xmail - X-based interface to the Berkeley mail program
- Xmailbox - Mailbox checker with sound and animation for X Window System
- Xmailwatcher - Mailbox checker which displays sender and subject lines of mails
- Xpbiff -