Erik Thuning:
> Hi!
>
> I noticed my site is running compatibility_level=0, which I want to
> change. From what I can gather at
> http://www.postfix.org/COMPATIBILITY_README.html, it seems that the
> compatibility messages largely get triggered when postfix comes across a
> message where they are relevant, not on service startup etc.
>
> So, I ran a quick check through all my servers' mail logs (4 weeks back)
> looking for these messages, and nothing showed up. Given that these logs
> actually reflect typical usage, it seems like I'm in the clear.
>
> Is there anything else I can do to verify that none of my setings will
> get changed in a surprising manner when switching compatibility levels?
You are doing the right thing. If no warnings trigger, then the
compatibility_level should be safe to change without visible effects.
Wietse