By trying to figure out, why mails over our Server (Ubuntu 16.04, configured with "Perfect Server HowTo") quite often are blocked by Hotmail and AOL, I might have found even another Problem...maybe done by misunderstanding. I have 2 configurations tested in main.cf and for sending mail internally over Outlook from [email protected] to [email protected]. The first brings up Code: amavis[22435]: (22435-07) Passed CLEAN {RelayedOpenRelay} in my mail.log by using Code: smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, reject_unauth_destination, permit smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_rbl_client zen.spamhaus.org, check_recipient_access mysql:/etc/postfix/mysql-virtual_policy_greylist.cf, permit and the second, probably more original, Comes up with Code: amavis[22435]: (22435-08) Passed CLEAN {RelayedInbound} by using Code: smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination, permit smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, reject_rbl_client zen.spamhaus.org, check_recipient_access mysql:/etc/postfix/mysql-virtual_policy_greylist.cf, permit Actually, both configs look ok to me (as far as what I have read over the Internet and tried to figure out by myself), so why am I getting any amavis Relay-Messages?