Open relay
I use Postfix.
I've just configured mail server. It's work, but it is an open relay. How can I change the configuration of mail server not to work like an open relay? |
How do you know it's an open relay?
Make sure smtpd_recipient_restrictions in main.cf has a reject restriction, specifically reject_unauth_destination. The default, i believe is: smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination and according to sample-smtpd.cf: # NOTE: YOU MUST SPECIFY AT LEAST ONE OF THE FOLLOWING RESTRICTIONS # OTHERWISE POSTFIX REFUSES TO RECEIVE MAIL: # reject, defer, defer_if_permit, reject_unauth_destination So you shouldn't be an open relay by default. What have you done to make it an open relay? |
All times are GMT -5. The time now is 08:26 AM. |