On 16/12/21 10:00 am, Peter Münster wrote:
submission inet n - n - - smtpd
...
-o smtpd_client_restrictions=reject_unknown_reverse_client_hostname,permit_sasl_authenticated,reject
Not related to your current issue, but you will find it almost impossible to accept mail from submission clients with this setting. Many non-commercial IP addresses do not have a PTR record (reverse mapping). reject_unknown_reverse_client_hostname will cause any connection from such an IP address to be rejected outright. It's a setting that is intended to be used for port 25 connections from other MTAs, not for submission.
Peter
