I want to avoid locking people into solutions that work only with Postfix. People should have a choice in what software they want to use with Postfix, be it anti-virus or otherwise.

This will surprise some of your readers, but my primary interest is not with computer security. I am primarily interested in writing software that works as intended.

Like all software, Qmail can survive only when it keeps up with changing requirements.

The Postfix security model is based on keeping software simple and stupid.

As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included.

Sure, but competition is good for the user.

Most of the effort in the software business goes into the maintenance of code that already exists.