Osx mail server greylisting

Question

how can I change the messages that are greylisted or the time?
It says
for: 60 seconds due to greylisting
but sometimes it takes 15-20 mins until I get the message. Or is it depending also on the other server, I have tested it with google mail.
and why does it always greylist the same adress shouldn't it learn the adresses that are once accepted that it is ok?
rgds jan

Answer 1

using command line as sudo edit the main.cf at the line
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination,check_pol icy_service unix:private/policy permit
remove the check_policy_service unix:private/policy
once done you will thenhave to lock the file because if you restart or a pidgeon flies past the system puts it back in.
To lock a file enter #chflags nouchg main.cf