thank you.
by the way, what is the right step-by-step procedure for adding a router in exim? I could not find any such documentation for new users telling which file should be edited first and which steps should be done one by one. What I did (finally successfully) was rather by trial and error (some docs mentioned about /etc/exim.cfg but such file doesn't exist anywhere on newer Debians).
so, I edited:
/etc/exim4/exim4.conf.template
adding my router below routers section:
catch_all_outgoing:
driver = redirect
data = centralrecipient@remotehost.com
and after that I run:
update-exim4.conf
what caused that router appeared in file:
/var/lib/exim4/config.autogenerated
I also restarted exim4 by:
service exim4 restart
The fun is that creating new router file in /etc/exim4/conf.d/router/ gave no results even after update-exim4.conf so I think this directory is completely ignored by exim4 (at least it didn;t work for me on Debian 8.5 - only change in the config template was considered by the update-exim4.conf