Postfix selective header_checks: smtpd_relay_restrictions vs. smtpd_recipient_restrictions
- by luke
Some of my customers implemented commercial software that violate email-RFCs such that we have had to relax our header checks. In consequence, we receive more spam.
Prolog:
I know the domains (customer.com) and IP-addresses (a.b.c.d/C) these emails come from
Kind request for help:
Is it possible to setup one Postfix (2.11) instance on Linux…