Writing software that's safe even in the presence of bugs makes the challenge even more interesting.
Wietse VenemaThe challenge with Postfix, or with any piece of software, is to update software without introducing problems.
Wietse VenemaAs of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included.
Wietse VenemaPostfix keeps running even if one Postfix process dies; Windows requires that someone restarts the service.
Wietse Venema