>> Sorry, do I understand it correctly: >> default MTA is only required because 'at' in base depends on it? > An MTA is *not* required. It is in base. There's a difference. *Not* required, but *is* in base. Sounds bad. Ok, I will know the drill. Exim is important. Postfix is extra. Base is not what is required but what most users would probably install. -- Vadim Berkgaut