List of mail servers

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This is a list of mail servers: mail transfer agents, mail delivery agents, and other computer software which provide e-mail services.

Contents

[edit] SMTP

[edit] POP/IMAP

[edit] Mail filtering

[edit] Comparison of mail servers

Mail server Server OS support Features Storage License
Linux/Unix Windows Mac OS X SMTP POP3 IMAP SMTP over TLS POP over TLS SSL Webmail lower priority MX correct handling Database Filesystem Other
Apache James Yes Yes Yes Yes Yes No Yes  ? No No  ? Yes Yes No Open Source/ASLv2
Courier Mail Server Yes No Yes Yes Yes Yes Yes Yes Yes Yes  ? Yes Yes No Open Source
Exim Yes No Yes Yes No No Yes No Yes No  ? No Yes No Open Source
GroupWise Yes Yes No Yes Yes Yes Yes Yes Yes Yes  ? Yes No No Proprietary
IBM Lotus Domino Yes Yes  ? Yes Yes Yes Yes Yes Yes Yes  ? Yes No No Proprietary
JBoss Mail Server Yes Yes Yes Yes Yes No Yes Yes Yes No  ? Yes No No Open Source/LGPL
Kerio MailServer Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes  ? No Yes No Proprietary
Mailtraq No Yes No Yes Yes Yes Yes Yes Yes Yes  ? Yes Yes No Proprietary
MDaemon No Yes No Yes Yes Yes Yes Yes Yes Yes  ? No Yes No Proprietary
Merak Mail Server Yes Yes No Yes Yes Yes Yes Yes Yes Yes  ? Yes Yes Yes Proprietary
Microsoft Exchange No Yes No Yes Yes Yes Yes  ? Yes Yes No ESE only No No Proprietary
NetMail Yes Yes No Yes Yes Yes Yes Yes Yes Yes  ? Yes No No Proprietary
Postfix Yes No Yes Yes No No Yes No Yes No Yes since 2.1 Yes Yes No Open Source/IBM Public License
Qmail Yes No Yes Yes Yes No Yes No Yes No  ? No Yes No Open Source (netqmail only. Qmail is free-to-use)
WinGate No Yes No Yes Yes Yes Yes Yes Yes Yes  ? No Yes No Proprietary
WorkgroupMail No Yes No Yes Yes Yes No No Yes Yes Yes Yes No No Proprietary
Zimbra Yes No Yes Yes Yes Yes Yes  ? Yes Ajax  ? No Yes No Open Source/Proprietary
Mail server Login Authentication
SMTP AUTH POP before SMTP APOP Filesystem DB LDAP Other
Courier Mail Server Yes Yes Yes Yes Yes Yes  ?
GroupWise Yes Yes Yes Yes Yes Yes eDirectory, Any LDAPv3-compliant source
NetMail Yes Yes Yes Yes Yes Yes eDirectory, LDAP
Apache James Yes  ?  ?  ? Yes Yes  ?
Mailtraq Yes Yes Yes Yes Yes Yes Active Directory
MDaemon Yes Yes Yes Yes Yes Yes Active Directory
JBoss Mail Server Yes No Yes Yes Yes Yes  ?
Microsoft Exchange Yes  ? Yes No No Yes proprietary
Kerio MailServer Yes Yes  ? Yes No Yes Active Directory, Apple Open Directory, ActiveSync
Postfix Yes  ? Yes Yes Yes Yes  ?
Merak Mail Server Yes Yes Yes Yes Yes Yes NT Domain, Active Directory
WinGate Yes Yes Yes Yes Yes No NT Domain, Active Directory, CRAM-MD5, SASL PLAIN, SASL LOGIN
WorkgroupMail Yes No No No Yes Yes NT Domain, Active Directory
Zimbra Yes  ? Yes Yes Yes Yes  ?

[edit] External links

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