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MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project
https://github.com/SpamTagger
[antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready.
MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet.
It...
The PigeonAir Project aims at releasing an Open and Free GPL solution to easily build up clustered, scalable and modular email services, targetted to satisfy all ISP needs.
An advanced qmail distribution based on qmail-sql which has SMTP, SMTPS, POP3, POP3S, IMAP, IMAPS services, a content scanner, spoofing protections, SMTP AUTH support, SMTP-after-POP/IMAP, PHP5 API, SPF support and much more...
The mission of this project now is control traffic e-mail servers. Including system of audit, allow, deny, autorespond, anti-spam and many others features. Now coming soon features for graphics and statistics about server and services.
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Relay-auth is provided to control relay access for sendmail and other MT Agents. It is a web authentication module to allow limited access to relay mail servers.
mx-LDAP-Suite
mx-LDAP-vacation: auto responses mail on vacation and reads the message from LDAP.
mx-LDAP-admin:Is a PHP based tool. It provides administration of LDAP-Directories
(Add, modify and delete user-accounts,groups,aliases,
samba-workstat
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
OzoneFarm is a eCommunity-building project aimed at promoting open source computing and distribution and generation of open content. The goals and strategies for forming the community are being discussed in an open forum.