proxmox/pfsense/ postfix as internet site

[warmup031]

Hello,
I installed proxmox 6.1-7, pfsense as gateway/fw, and in the lan, there is a postfix server (centos 8/postfix-3.3.1-9)configured as internet site.

I can send mail from lan to wan,
but receiving mails give me errors

May 24 02:40:55 mail postfix/smtpd[3160]: NOQUEUE: reject: RCPT from xx.example.com[xx.xx.xx.xx]: 451 4.3.5 Server configuration error;
May 24 02:40:56 mail postfix/smtp[3167]: F048CBE25C: to=<postmaster@xxx.com>, orig_to=<postmaster>, relay=none, delay=0.04, delays=0.03/0.01/0/0, dsn=5.4.6, status=bounced (mail for 192.168.9.xx loops back to myself)
May 24 02:40:56 mail postfix/bounce[3168]: warning: F048CBE25C: undeliverable postmaster notification discarded

Thank you for your help

 

[wolfgang]

Hi,

sorry but this has nothing to do with Proxmox VE.
I think you should ask in a postfix related forum.