Received: flag in Header includes local hostname even if configured smtpd banner hostname

[tfe]

I configured the correct SMTPD Banner Address with official Servername (mail.xxx.com)
But some mail servers did not accept mails from our PMG because the header still contains:

Received: from pmg.gye-verw.lan (mail.xxxxx.de. [188.119.1xx.2xx])

Ho to change this to the official servername as well as in the SMTPD Header?
I don't want to change the complete internal hostname...

Thanks
Tobias

 

[mfederanko]

You have to change the hostname of PMG in /etc/hosts and /etc/hostname. See [0] for details on how to do that.
There is a overview of configuration files at [1], which also says that /etc/hostname is used to set the FQDN in the postfix configuration.

[0]: https://pmg.proxmox.com/wiki/Change_FQDN
[1]: https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_configuration_files_overview

 

[tfe]

Thanks for your answer.

changing the complete hostname is not what we want...

What I found out is, you have to change the "myhostname" Variable in the /etc/postfix/main.cf
after restarting postfix all outgoing mails have this new myhostname in the "from" field in the header....

 

[mfederanko]

This file is auto-generated by PMG and your changes will not survive a reboot.

 

[aaron]

Checkout this chapter on how to use the config file templates to persist changes: https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#pmgconfig_template_engine