O.k. and via the trusted_networks I can whitelist some known server not to check rbls against, right?
NO!!!!!!
trusted_networks is *NOT* a whitelist.
Please do not think that because a host is "trusted" it means it's spam free. "trusted" means "part of my home network, and thus any mailservers in it are relays I control". There's a VERY big difference here.
NEVER insert a host into trusted_networks unless it's a mailserver that you control that never accepts email from a dialup node.
Please re-read my original message more carefully.
Because it would not be the best thing, if I'd have a customer fetching his mail from e.g. hotmail and all mail ist tagged as spam, just because hotmail ist on some rbl...
