We’ve published v3.1.0-beta2, containing many improvements from the 3.0.x series. The most significant features in 3.1.x thus far:

  • Lua scripting to support more complex configurations and integrations
  • The ability to reject mail based on the origin domain
  • Expanded TLS support for SMTP and POP3 services

More details can be found in the CHANGELOG

Binaries and Linux packages available on GitHub