The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, Webmail, calendaring, and mailing list services.
Highly scalable/configurable Messaging Platform allowing users in a domain to be distributed on multiple hosts, has multiple queues. Provides virtual domains/users in MySQL. Modern MSP class qmail replacement with ESMTP, POP3/IMAP, QMTP, QMQP support
OneLDAP is a limited LDAP server that is a proxy to other common protocols, such as POP3 and IMAP. It provides basic SEARCH and BIND functions for standard LDAP authentication. It is based on the shell backend function of OpenLDAP. Release files are available at the project website.
slapd-cyrus is a slapd backend, used to translate LDAP DIT into Cyrus IMAP-server configuration. It can manage user folders, shared folders and ACLs of shared folders.
PerlPop3 is a pop3 server written entirely in Perl. It is not memory hog as other pop3 servers, and pretty fast processing thousands of mails. Can be extended to use a database (and use APOP authentication). As a script can be modified as per your ne
popwatcher is a daemon that maintains a list of hosts that are authorized to use your mailserver as an SMTP relay based on those hosts successfully authenticating to your POP mail server. The default configuration is designed to work with qpopper and exi
A small, fast, secure, anti-spam SMTP mail server (MTA). Delivery to mbox files and Maildirs supported. qwik-smtpd supports RBL, relay checking, raw/custom message handlers, and more. Custom authentication via checkpassword and a qmail-compatible configu
WE HAVE MOVED OFF SOURCEFORGE. PLEASE VISIT http://openwebmail.acatysmoof.com. OpenWebMail is a full-featured webmail, addressbook, calendar, and webdisk system that is designed to manage very large mail folder files in a quick and memory efficient w
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