Wietse Venema — Dutch Scientist

Wietse Zweitze Venema is a Dutch programmer and physicist best known for writing the Postfix email system. He also wrote TCP Wrapper and collaborated with Dan Farmer to produce the computer security tools SATAN and The Coroner's Toolkit... (wikipedia)

Adding functionality is not just a matter of adding code.
Lack of documentation is becoming a problem for acceptance.
Defect-free software does not exist.
The challenge with Postfix, or with any piece of software, is to update software without introducing problems.
For many people my software is something that you install and forget. I like to keep it that way.