MeTA1 is a modularized message transfer agent (MTA)consisting of five (or more) persistent processes,four of which are multi-threaded. A queue managercontrols SMTP servers and SMTP clients to receiveand send email messages, an address resolverprovides lookups in various maps (including DNS)for mail routing, and a main control programstarts the other processes and watches over theirexecution. The queue manager organizes the flow ofmessages through the system and provides measuresto avoid overloading the local or remote systemsby implementing a central control instance. It issimple to configure using a C-like syntax and issecure and efficient.
License: Other/Proprietary License with Source
Changes:
This version is the first step towards anti-spam measures per recipient using smtps_rcpt_conf as a tag in the access map. For now only greylisting can be requested, but further development is planned.
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