LCA: Lessons from 30 years of Sendmail

You are being inflammatory. The choice of programming language is clearly not the most important part of secure coding. Otherwise I'd expect you to run a Python based sshd on your system, no?

C is good because it is trivial and easy to read when done properly. Token expansion or resource exhaustion won't creep up on you from the underlying libraries.

There are of course other aspects to it. Given the choice between a C daemon and a Python one, without knowing the program I too would probably pick the latter one, but it all boils down to prejudice.