Preserve Postfix configuration during reboot
we are using additional email notification for specific log-messages (mostly poolmember went down). This works fine, but as this is not an "official" available feature you need to configure Postfix on the command line first.
We made the necessary modifications to "/etc/postfix/main.cf" and "/etc/postfix/transport" and also added the postfix service to the "autostart" (bigpipe add postfix).
But after a reboot all these settings are lost.
How can I preserve these Postfix settings during a reboot and even better is there also a possibility to preserve the settings during a software upgrade?
That would be really helpfully for us, because we are using this "feature" more and more and therefor need some reliability.
Ciao Stefan :)