Coherent Mail Gateway is intended to be a very easy to set up MTA using SMTP and POP3. Greylisting is used on the SMTP daemon to reduce spam. In addition, quite a lot of checks on the validity of information from the SMTP client (such as claimed server name and sender) are carried out, and anyone caught telling lies is disconnected. Grey-, black-, and white-listing are supported, as well as (optionally) ClamAV and Spamhaus. The target market is users with static IP addresses. Others can use the system, but its value will be limited to outgoing email.
| Tags | Communications Email Mail Transport Agents Post-Office POP3 |
|---|---|
| Licenses | Freeware |
| Implementation | Perl |
Recent releases


Release Notes: The SMTP server now dynamically bans persistently abusive IPs for a period. Performance is enhanced, and users may be given passwords to relay through the SMTP server from remote locations.


Release Notes: Bounced messages are now handled better, since responses with a value higher than "500' are bounced instantly instead of remaining in the queue for re-trying. Also, bounce messages now say which address failed to make it clear in cases where there were multiple targets. A few other very minor changes were made.


Release Notes: A bug in pop3d related to the change in Perl's return values from recv has been fixed. This would cause pop3d to terminate sessions without warning under certain (unclear) circumstances.


Release Notes: General improvements were made. The Spamhaus XBL lists were added to spam checking. Caching of redrect information was improved. Handling of internal email and dying peer servers was improved.


Release Notes: Email may now be redirected. Some minor improvements to queued mail handling were also made.
An IP Phone scanner dedicated to enterprise environments and solutions.