Thanks, Eugene, I did not know about /var/lib/exim4/config.autogenerated Nevertheless, I would prefer, if I could test on the production server itself.
Rainer Am Samstag, 13. April 2019, 20:15:02 CEST schrieb Evgeniy Berdnikov via Exim- users: > On Sat, Apr 13, 2019 at 06:15:33PM +0200, Rainer Dorsch via Exim-users wrote: > > I want to upgrade my server from Debian Jessie to Debian Stretch. I am > > afraid that at some time during the upgrade process, there is an invalid > > exim configuration and messages get rejected. In order to avoid that I > > was thinking of either redirecting via DNS to a server which does not > > listen to port 25 to enforce the sender to try again. Or redirect via DNS > > to a server which buffers all incoming messages until the Stretch setup > > is tested (not sure which server software does this though...). > > > > Can anybody recommend one of the approaches or even propose something > > better...? > > Upgrade Exim on a minimal test system and check/tune its config. > Do it before the production server upgrade. > > You can also check whether old config works fine with new Exim version, > if so, keep it for future use. In Debian completely assembled config is > in file /var/lib/exim4/config.autogenerated. -- Rainer Dorsch http://bokomoko.de/ -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
