0.5.0 (07.04.2010)

• Dropped dependency to repoze.workflow because the module added a lot of dependencies recently (six others in total). The new, custom state machine also supports flags and conditions which suits SMTP very much.
• Added dependency to pycerberus (>= 0.3.1) to validate all sent parameters thoroughly with sensible error messages.
• All inputs from peers is now validated
• relaxed restrictions for the HELO/EHLO parameter (as real world clients don't send real host names)
• Fixed bug - ESMTP session switched back to plain SMTP after the first mail was sent
• Fixed bug - Hang after sending data to a broken connection

0.4.0 (08.06.2009)

• Compatibility fixes for Python 2.3-2.6
• Policies can drop connection to the client before or after the response
• CommandParser is more robust against various socket errors
• Better infrastructure and documentation to use pymta in third-party tests

0.3.1 (27.02.2009)

• Fixed bug which caused hang after unexpected connection drop by client

0.3 (15.02.2009)

• Switch to process-based architecture, got rid of asyncore
• Support for size-limitations of messages, huge messages will not be stored in memory if they will be rejected anyway (denial of service prevention)
• API documentation is now auto-generated
• Renamed DefaultMTAPolicy to IMTAPolicy and moved all interfaces to pymta.api
• Added the debugging_server as an extremely simple example of a pymta-based server