Anti-Spam SMTP Proxy Server implements multiple spam filters
The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261.
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
...Zentyal Server incorporates all the network services required in a small and medium business environment:
* Directory & Domain Server with native compatibility with Microsoft Active Directory
* Mail Server with ActiveSync and webmail
* Gateway with firewall and proxy
* Infrastructure Server with DNS/DHCP server, Certification Authority and Virtual Private Networks
For more information and download, please access the project's home page.
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.
DKIMproxy is an SMTP-proxy that implements the DKIM and DomainKeys standards, to sign and verify email messages using digital signatures and DNS records. It can be used to add DKIM support to nearly any existing SMTP mail server.
AlphaMail is an accelerated web mail interface with a C++ middleware layer that is more effective than an IMAP proxy which is a highly scalable (10k+ users). The interface includes modern features, Section 508 compliance, and universal browser support.
A SMTP to ESMTP proxy that accepts mail, parses it for template variables. The template variables are rendered with values from a CSV file. Next they are sent to the ESMTP server. Uses Template::Toolkit, Config::Simple alongwith other libraries.
EmailProxy is a proxy server made in Perl. It tunnels POP3 commands from the client to the pop3 host. It only connects with accounts described on it's configuration file.
Deploy in 115+ regions with the modern database for every enterprise.
MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
This is a software system designed to "proxy" any number of dnsbl's. The system is designed to work with static, or dynamic dns zones(bind spec), sendmail access files, or libmilter and uses perl and bdb.
A SMTP-Proxy that allows authenticated SMTP sessions to traverse, while stopping SMTP sessions from internet worms and SPAM bots.
It can also be used transparently so clients need no additional settings, just auth. to their freemail of choice.
SpamFox - An anti-spam tool programmed in perl Serves as a kind of proxy between your emailclient and the mailserver. Will scan messages for spam and leaves a notice if spam has been found.
LanBiz is a free, Open Source Server Suite, mostly fitted for SOHO (Small Office/Home Office) environments. The final LanBiz will include: an internet gateway/firewall, proxy, mail, file/print, fax/telephony server and more!