Comment # 14 on bug 901115 from Heiner Kuhlmann

I had two times the Problem that the Postfix configuration was reset to the
default configuration. The MUA delivers the mail without any error. Because I
got no response on my mails I inspected the mail logs and could restore the
postfix configuration form my backup.

This not acceptable in any way.

Digging through the scripts /usr/share/YaST2/include/network/runtime.rb
and /usr/sbin/config.postfix I could locate the the old configuration files
in /var/adm/backup/postfix/.

This is OK. The problem is that no one expects that the mail configuration is
changed when the network configuration changed.

The main question is: Why is it necessary to change/restore the mail
configuration?

I think this is necessary only under certain conditions.

If there is an update to me there is only one solution:

The administrator shall be informed about the changes in the mail configuration
( Popup in Yast ). A note in the log is not sufficient.

I would prefer to create new configuration files named xxx.new in /etc/postfix.
Then the administrator can insert the new configuration. I am pretty shure in
most cases the old configuration will work.