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view docs/mta-comparison-external.txt @ 95:e83eada077fd
I decided to have no dedication, only the quote
| author | meillo@marmaro.de |
|---|---|
| date | Sun, 16 Nov 2008 15:29:30 +0100 |
| parents | e150e6406019 |
| children |
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from ``Life with qmail'' ======================== (november 2007) 1.9. Comparison with other MTA's A book could be written about this topic, but it would be tedious reading. Here's a quick comparison of qmail with some of the most common UNIX MTA's. ┌────────┬────────┬────────┬────────┬───────────┬───────────┬───────┐ │MTA │Maturity│Security│Features│Performance│Sendmailish│Modular│ ├────────┼────────┼────────┼────────┼───────────┼───────────┼───────┤ │qmail │medium │high │high │high │addons │yes │ ├────────┼────────┼────────┼────────┼───────────┼───────────┼───────┤ │Sendmail│high │low │high │low │x │no │ ├────────┼────────┼────────┼────────┼───────────┼───────────┼───────┤ │Postfix │medium │high │high │high │yes │yes │ ├────────┼────────┼────────┼────────┼───────────┼───────────┼───────┤ │exim │medium │low │high │medium │yes │no │ ├────────┼────────┼────────┼────────┼───────────┼───────────┼───────┤ │Courier │low │medium │high │medium │optional │yes │ └────────┴────────┴────────┴────────┴───────────┴───────────┴───────┘ Sendmailish means the MTA behaves like Sendmail in some ways that would make a switch from Sendmail to the alternative MTA more user-transparent, such as the use of .forward files, /etc/aliases, and delivery to /var/spool/mail. Jonathan de Boyne Pollard has reviews of many Unix MTAs at http://homepages.tesco.net/~J.deBoynePollard/Reviews/UnixMTSes/. Another detailed comparison is available at http://www.geocities.com/mailsoftware42/. from ``open source mail server comparison'' =========================================== (november 2003) This is a comparison between all the free open-source mail software solutions actually avalaible. I want to thanks all the sofware developers for developing such a great software for the open source community. COURIER-MTA EXIM POSTFIX SENDMAIL QMAIL Version: Courier-0.44.x Exim Version Postfix Version Sendmail qmail-1.03 4.2x 2.0 Patchlevel x 8.12.x Managing Imap Exim: The Mail Postfix Sendmail The qmail Transfer Agent Handbook Licence: GPL GPL IBM Public ? Especial License Authenticated SMTP Login/CRAM-MD5 Login/Plain/ yes (using SASL) yes(using patch CRAM-MD5 SASL) SMTP over SSL/TLS yes ? ? ? patch STARTTLS extension yes yes ? yes patch POP before SMTP no ? Yes ? addon Virtual Domains support yes yes yes yes yes Supported Backends Ldap / MySQL / PostgreSQL Ldap / MySQL Ldap / MySQL Ldap Ldap patch/ MySQL patch IPv6 support yes yes no (patch) yes patch Included POP server yes (SSL support, Apop not no no no yes included, SASL included) Included IMAP server yes (SSL included) no no no no Mailbox Format: Maildir /mbox/Maildir ++ Maildir/mbox/ Maildir/mbox mbox Maildir/mbox mbx? Quota support yes yes patch no patch / addons Mailing list manager couriermlm no ? ? ezmlm Configurable Deliver-Status-Notification yes yes no? ? no (DSN) Log analysing utilities no yes yes yes yes Verbosity logging options: no yes yes ? yes Web-based Administration yes no yes / no yes/no yes / no SUBJECTIVE CHARACTERISTICS: COURIER-MTA EXIM POSTFIX SENDMAIL QMAIL Security: ? low-medium high low high / very high Installation: medium medium easy - easy medium-difficult medium Configuration: medium easy-medium easy difficult easy Performance: ? medium high low high Maturity/status low low medium high medium : Documentation: low high medium-high high high (but sometimes confusing) Features: high medium-high medium high low (There are many patches available for adding Features)