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.

At the time the Sendmail program had a very poor reputation with respect to security, with four root vulnerabilities per year for two successive years.

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

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

When I write software, I know that it will fail, either due to my own mistake, or due to some other cause.

Adding functionality is not just a matter of adding code.

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.