| Postfix |
Mail Transfer Agent (MTA) |
| Dovecot |
POP3, IMAP and Managesieve server |
| Nginx, Nginx |
Web server |
| OpenLDAP, ldapd(8) |
LDAP server, used for storing mail accounts (optional) |
| MySQL, MariaDB, PostgreSQL |
SQL server used to store application data. Could be used to store mail accounts too. |
| mlmmj |
Mailing list manager. Shipped in iRedMail-0.9.8 and later releases. |
| Amavisd-new |
Interface between Postfix and SpamAssassin, ClamAV. |
| SpamAssassin |
Content-based spam scanner |
| ClamAV |
Virus scanner |
| Roundcube webmail |
Webmail (PHP) |
| SOGo Groupware |
A groupware which provides calendar (CalDAV), contact (CardDAV), tasks and ActiveSync services |
| Fail2ban |
Scans log files and bans IPs that show the malicious signs |
| iRedAPD |
A simple postfix policy server developed by iRedMail team, with SRS (Sender Rewrite Scheme) support. |