Mail transport agents Mail transport agents The Courier mail transfer agent (MTA) is an integrated mail/ groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL/TLS, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent framework. Individual components can be enabled or disabled at will. Courier now implements basic web-based calendaring and scheduling services integrated in the webmail module. Advanced groupware calendaring services will follow soon. ...more on Wikipedia about "Courier IMAP"
The Cyrus IMAP server differs from other IMAP server implementations in that it is generally intended to be run on sealed servers, where normal users are not permitted to log in. The mail spool uses a filesystem layout and format similar to, but better than, the Maildir format used by other popular email servers such as qmail, Courier IMAP, Dovecot, etc. Cyrus IMAP's spool format lacks Maildir's performance and scalability problems, and is stored in parts of the filesystem that are private to the Cyrus IMAP system. Users can access mail through the IMAP/IMAP-S, POP3/POP3-S or KPOP protocols. ...more on Wikipedia about "Cyrus IMAP server"
Dovecot is an open source IMAP and POP3 server for Linux/ UNIX-like systems, written primarily with security in mind. Developed by Timo Sirainen, Dovecot was first released in July 2002. ...more on Wikipedia about "Dovecot (software)"
Exim is a mail transfer agent (MTA) used in Unix-like operating systems. The first version was written in 1995 by Philip Hazel for use in the University of Cambridge Computing Service's e-mail systems. ...more on Wikipedia about "Exim"
Hula is a free software/ open source mail and calendar project announced February 15 2005 by Novell. ...more on Wikipedia about "Hula (software)"
Lotus Domino is an IBM server product that provides e-mail and collaboration capabilities. Domino began life as Lotus Notes Server, the server component of Lotus Development Corporation's client-server messaging technology. It can be used as an application server for Lotus Notes applications and/or as a web server. ...more on Wikipedia about "IBM Lotus Domino"
IMail Server is an electronic mail solution for Internet and intranet messaging requirements. Easy to install and administer, IMail Server significantly reduces the cost of mail implementation and administration. Its features improve productivity and provide an alternative to proprietary systems or complicated UNIX-based Internet mail. ...more on Wikipedia about "IMAIL"
A mail transfer agent or MTA (also called a mail transport agent, mail server, or a mail exchange server in the context of the Domain Name System) is a computer program or software agent that transfers electronic mail messages from one computer to another. ...more on Wikipedia about "Mail transfer agent"
maildrop - mail delivery agent (MDA) with filtering abilities from Double Precision Inc, distributed under the terms of the GNU General Public License. ...more on Wikipedia about "Maildrop"
MDaemon is a mail transfer agent for Microsoft Windows, produced by Alt-N Technologies. ...more on Wikipedia about "MDaemon"
Microsoft Exchange Server is a collaborative software server from Microsoft, positioned as a rival to the Lotus Notes / Domino server from IBM and recently challenged by a number of Linux-based competitors such as Scalix. The use of Microsoft Exchange is very widespread in large corporations using Microsoft infrastructure solutions. Among other things, Microsoft Exchange manages electronic mail. ...more on Wikipedia about "Microsoft Exchange Server"
MMDF, the Multichannel Memorandum Distribution Facility, is a mail transfer agent (MTA) originally developed at the University of Delaware in the late 1970s. ...more on Wikipedia about "MMDF"
Postfix is an open source mail transfer agent (MTA), a computer program for the routing and delivery of email. It is intended as a fast, easy-to-administer, and secure alternative to the widely-used Sendmail. Formerly known as VMailer and IBM Secure Mailer, it was originally written by Wietse Venema during a stay at the IBM Thomas J. Watson Research Center, and continues to be actively developed today. ...more on Wikipedia about "Postfix (software)"
qmail is a mail transfer agent that runs on Unix. It was written by Daniel J. Bernstein as a more secure replacement for the popular Sendmail program. Only two minor bugs have been found in qmail since version 1.0, and there is an as yet unclaimed $500 prize for the first person to publish a verifiable security hole in the latest version of the software. ...more on Wikipedia about "Qmail"
qpsmtpd is an SMTP daemon written in Perl. It was originally designed to be a drop-in replacement for qmail-smtpd, the SMTP component of qmail, and it is now also compatible with Postfix. ...more on Wikipedia about "Qpsmtpd"
Sendmail is an open source mail transfer agent (MTA): a computer program for the routing and delivery of email. Its authors released the current version, Sendmail 8.13.5 , on September 16, 2005. ...more on Wikipedia about "Sendmail"
SNDMSG was one component of a mail program written by Ray Tomlinson that was first used in 1971 for TENEX. The other component was READMAIL. SNDMSG was used for the purpose of sending Electronic Mail from one user to another, however, it was not capable of sending to different machines. ...more on Wikipedia about "SNDMSG"
The UW IMAP server is the reference server implementation of the IMAP protocol. Unlike other server implementations, it is designed to be aggressively compatible with existing mail stores and outdated systems, and to be "plug-and-play" installable without requiring any site-specific configuration. ...more on Wikipedia about "UW IMAP"
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