Mail Servers

From openSUSE

Information

A mail transfer agent or MTA (also called a mail transport agent, message transfer agent, mail server, or a mail exchanger 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.

It receives messages from another MTA (relaying), a mail submission agent (MSA) that itself got the mail from a mail user agent (MUA), or directly from an MUA, thus acting as an MSA itself. The MTA works behind the scenes, while the user usually interacts with the MUA.

The delivery of e-mail to a user's mailbox typically takes place via a mail delivery agent (MDA); many MTAs have basic MDA functionality built in, but a dedicated MDA like procmail can provide more sophistication.

According to various surveys the most popular mail server software are Sendmail, Postfix, Microsoft Exchange Server, Exim, IMail (by Ipswitch, Inc.), MDaemon by Alt-N Technologies, MailEnable, Merak Mail Server and qmail. Many organizations use the services of e-mail security services such as Postini, MXLogic or Concentric Hosting to receive e-mail.

List of mail servers

SMTP

   * Apache James
   * Atmail
   * AXIGEN
   * Citadel
   * SparkEngine
   * Stalker CommuniGate Pro
   * Courier
   * Eudora Internet Mail Server
   * Exim
   * IBM Lotus Domino
   * Kerio MailServer
   * MailEnable Mail Server
   * Mailtraq
   * Merak Mail Server
   * Mercury Mail Transport System
   * MeTA1 (successor of the sendmail X project)
   * Microsoft Exchange Server
   * MMDF
   * Novell GroupWise
   * Novell NetMail
   * Postfix
   * PostPath Email and Collaboration Server
   * qmail
   * Scalix
   * Sendmail
   * SmarterMail
   * Sun Java System
   * WinGate
   * WorkgroupMail
   * XMail
   * Zimbra
   * ZMailer

POP/IMAP

   * Apache James
   * Axigen
   * Binc IMAP - uses Maildir
   * Bluebottle
   * Citadel - uses a database-driven mail store
   * Stalker CommuniGate Pro
   * Courier Mail Server - uses Maildir format
   * Cyrus IMAP server
   * Dovecot
   * Eudora Internet Mail Server
   * Meldware Communication Server (Free open source [multi-platform] mail server)
   * Kerio MailServer
   * Lotus Domino IMAP4 Server
   * MailEnable Mail Server
   * Mailtraq
   * Merak Mail server
   * Mercury Mail Transport System
   * Microsoft Exchange Server
   * Microsoft Windows POP3 Service
   * Novell GroupWise
   * Novell NetMail
   * Oryx Archiveopteryx
   * PostPath
   * Qpopper
   * SmarterMail
   * UW IMAP - uses mbox format.
   * WinGate
   * WorkgroupMail
   * Zimbra

Mail filtering

   * ASSP
   * Bayesian filters
   * Bogofilter
   * DSPAM
   * Hexamail Guard
   * maildrop
   * Mailtraq
   * Procmail
   * PureMessage
   * SurfControl
   * SpamAssassin
   * WinGate
   * WorkgroupMail
   * Gattaca Server
   * Vipul's Razor