We have computer with 18.104.22.168, 22.214.171.124, 126.96.36.199 and 188.8.131.52. I set in postfix:
smtpd_client_restrictions = permit_mynetworks, warn_if_reject reject_unknown_client, warn_if_reject check_client_access hash:/etc/postfix/access, permit_sasl_authenticated, permit
When I add reject_unknown_client I get ONLY for 184.108.40.206
Mar 29 09:45:31 fo-mail postfix/smtpd: NOQUEUE: reject_warning: RCPT from unknown[220.127.116.11]: 450 4.7.1 Client host rejected: cannot find your hostname, [18.104.22.168]; from=<firstname.lastname@example.org> to=<email@example.com> proto=ESMTP helo=<[172.16.210.24]>
I writed to access
It doesn't help.
Can you help me?