Hostname issue causing invalid helo .... help!

[MiamiJack]

Hello All,

Not sure what changed because this has been running well for over a year.

We got blacklisted because:
helo: mgw.localdomain

Which is not the domain name.

I checked in /etc/pmg/templates/main.cf.in
While I do ave other custom settings, I never set anything manual for hostname, so those lines look like this (default):
mydomain = [% dns.domain %]
myhostname = [% dns.hostname %].[% dns.domain %]

Not sure what happened but when I look at /etc/postfix/main.cf it does have the localdomain reference.
I double checked server config and it looks correct in GUI.

Any ideas???
Not good being blacklisted...

Running: Mail Gateway 7.1-1

 

[MiamiJack]

Side note:
After I did a config override for the hostname until we figure out how to fix it, when I was done editing the template and ran the sync tool I got this error:

pmgconfig sync --restart 1
Use of uninitialized value $domain in concatenation (.) or string at /usr/share/perl5/PMG/Utils.pm line 642.

 

[Stoiko Ivanov]

I guess the issue is that you don't have a 'search' setting in /etc/resolv.conf - see https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_configuration_files_overview

I hope this helps!

 

[MiamiJack]

I do have nameservers defined, does search really make a difference if everything is public DNS?
Thanks!

 

[Stoiko Ivanov]

I do have nameservers defined, does search really make a difference if everything is public DNS?

as written in the docs at the link i pasted - the search setting is used to get the domain-name of the system, which in turn is used in the postfix configuration.

 

[MiamiJack]

Yes, saw that afterwards, thank you!