Is /etc/system_filter.exim overwritten by updates?

[jigster]

Exim was discarding perfectly good (forwarded) emails without any bounce message, so we have commented some rules in /etc/system_filter.exim which has fixed the issue. I just wanted to check that /etc/system_filter.exim isn't overwritten during updates, or whether it needs copying into custombuild somewhere to preserve the changes? The DirectAdmin docs say to make direct edits to this file for other things, which suggests it is left alone during updates, but I just wanted to check that's correct.
Thanks

 

[Ohm J]

yes, please put custom file into "./directadmin/custombuild/custom/exim/conf"

but, before do that, Please check in "./directadmin/custombuild/configure/exim/" for file structure.

 

[jigster]

Thanks, yes I have confirmed a ./build exim_conf did indeed overwrite the changes. I did

cp /usr/local/directadmin/custombuild/configure/exim/system_filter.exim /usr/local/directadmin/custombuild/custom/exim/system_filter.exim

made the changes there and ./build exim_conf now keeps my changes. Thanks for your help.