Omniver: > I have a mail server receiving internet mail for my primary domain and for a > few virtual domains. I'm having some spam issues with internet mail coming > in for address@mydomain for addresses intended for use by local > tools/scripts which are listed in /etc/aliases. Any ideas on how can I make > it that postfix accepts mail for these addressesI *only* if they were sent > by my mail server?
A crude but simple solution: - Add the server's IP address to Postfix mynetworks. - Block some recipients if mail does not come from mynetworks: /etc/postfix/main.cf: smtpd_recipient_restrictions = permit_mynetworks check_recipient_access hash:/etc/postfix/recipient_access ... reject_unauth_destination ... /etc/postfix/recipient_access us...@example.com reject us...@example.com reject Crude because it adds the server to mynetworks. Wietse