I am struggling with a configuration that might be impossible. Hopefully the list can help guide me.
I want to allow internal systems the ability to relay emails to my domains even though they might get caught with 'reject_unknown_reverse_client_hostname'. Possible? If yes, I am unsure how to configure smtpd_sender_restrictions and smtpd_recipient_restrictions to support such. Current non-working configuration for this scenario ------------------------------------------------------------------------ smtpd_sender_restrictions = permit_mynetworks, reject_unknown_sender_domain, reject_non_fqdn_sender smtpd_recipient_restrictions = reject_unknown_reverse_client_hostname, reject_non_fqdn_helo_hostname, reject_unknown_helo_hostname, reject_unauth_destination, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unverified_recipient Thank you in advance,