I just enabled the VERY COOL greylisting option under Mail Messages and was curious if there is a config for this in Virtualmin?
What I would like to do is decrease the default 5 minute time out to 1 minute for the next week. I have many clients that deal directly with their clients via email and a 5 minute wait when you are talking to the person over the phone could be a phone call to me : ). I would like to keep my phones from ringing off the hook on Mon.
Also, here is my Postfix smtpd_recipient_restrictions setup. I wanted to get your thoughts on the best place to use the check_policy_service.
smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_pipelining reject_invalid_hostname reject_unauth_destination check_policy_service inet:127.0.0.1:10023 reject_rbl_client cbl.abuseat.org reject_rbl_client zen.spamhaus.org reject_rbl_client bl.spamcop.net permit
A bug (atleast I think it is) that I want to point out is that after I ran the automated setup for Greylisting, the check_policy_service was added after permit in the smtpd_recipient_restrictions. This resulted in warnings in mail.log but more importantly nothing was being greylisted.