How to configure to require outbound authentication to be required?

RNDPMO

New Member
Apr 18, 2025
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Hi all

I'd like to use PMG as a mail relay mails to my on premises environment at home.
Inbound mail routing is already working fine, but for outbound mails I'd like to configure authentication to be required.
PMG and the sender are not located in the same local area network and do not have a fixed IP address.

Basically I want PMG to require authentication on TCP port 26
Local username/password authentication is good enough.

From what I have read, I need to work with templates in the /var/lib/pmg/templates directory.

Which file do I need to copy? main.cf.in or master.cf.in ?

Can anyone point me at a reference configuration?

Kind regards