My intranet mailcow server rejects mail from PVE:
"Could not test target: could not notify via endpoint(s): mailhomearpa: permanent error (504): 5.5.2 <pve01>: Helo command rejected: need fully-qualified hostname (500)"
Postfix log:
"NOQUEUE: reject: RCPT from unknown[10.38.42.50]: 504 5.5.2 <pve01>: Helo command rejected: need fully-qualified hostname; from=<test@home.arpa> to=<test@home.arpa> proto=ESMTP helo=<pve01>"
hostname -f:
pve01.home.arpa
Other systems (e.g. Zabbix, Passbolt) sending emails just fine.
So, PVE introduces itself to SMTP server as "pve01" instead of "pve01.home.arpa" and mail is rejected.
Any suggestions how to fix? Thanks.
"Could not test target: could not notify via endpoint(s): mailhomearpa: permanent error (504): 5.5.2 <pve01>: Helo command rejected: need fully-qualified hostname (500)"
Postfix log:
"NOQUEUE: reject: RCPT from unknown[10.38.42.50]: 504 5.5.2 <pve01>: Helo command rejected: need fully-qualified hostname; from=<test@home.arpa> to=<test@home.arpa> proto=ESMTP helo=<pve01>"
hostname -f:
pve01.home.arpa
Other systems (e.g. Zabbix, Passbolt) sending emails just fine.
So, PVE introduces itself to SMTP server as "pve01" instead of "pve01.home.arpa" and mail is rejected.
Any suggestions how to fix? Thanks.