Defect-free software does not exist.

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.

I don't expect an overnight change of all desktops to what the US Military used to call B3 level security. And even that would not stop users from shooting themselves into the foot.

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

Adding functionality is not just a matter of adding code.

The challenge with Postfix, or with any piece of software, is to update software without introducing problems.

Windows favors multi-threading, which means that a service is implemented by one single process.