Some stuff for the FAQ

[joximu]

Hi BeNe
for the postgrey now it says in the FAQ: delete the line
check_policy_service inet:127.0.0.1:60000
I'd rather say: comment the line (# at the beginning of the line) - so it's possible to enable it again very easy. Sure: postfix must be reloaded.
If someone want's do disable postgrey forever, then (s)he can disable the daemon postgrey also (isn't needed so better disable I'd say). Well how to do this should be clear for someone running a root server.

/joximu