Issue saving EXIM configuration

It doesn't appear to be possible to create a global exim filter, only a .yaml one; otherwise I might be able to shift the filtering up to the account level. Re-entering 250K lines of exim filters into the cpanel GUI for account filtering...<shudder>

I thought that the dovecot log files might help, but they want some global config file that either exists someplace else, or that I can't access. And they seem to be binary.

Sorry for the length, but I'm trying to be complete.
First, I'm a lowly user. I have had a ticket with lunarpages for a bit (4427801), and they've reached out to cpanel as well (Cpanel support 9309767).

I have a really large set of exim filters (250K lines), which used to work fine. When they updated to centos 7 and a newer cpanel, the exim save command within the filters stopped working.

Each user has a simple redirect to the account email. The account email then uses etc/filter to deliver things appropriately, e.g. for user dog:

Code:

if $h_to matches "dog" then
  save $home/mail/domain/dog/
  seen finish
endif

Previously, this would create a message in $home/mail/domain/dog/new. Now, even though "Track Delivery" happily reports success:

Code:

Delivered To: /home/domain_account/mail/domain/dog/
Router: central_user_filter
Transport: address_directory

There's no email.

Support suggested changing to

Code:

if $h_to matches "dog" then
  deliver dog@example.com
  seen finish
endif

That also doesn't work.

I know that it is hitting the exim filter, because I have logwrite messages, and because I have added a deliver dog@example.com line, and the email shows up there.


As the system is now centos, the redhat-release bit doesn't work, and there's no centos-release, but here's the suggested status command.

Code:

$ grep '' /etc/redhat-release /usr/local/cpanel/version /var/cpanel/envtype ; grep CPANEL= /etc/cpupdate.conf
grep: /etc/redhat-release: No such file or directory
/usr/local/cpanel/version:11.68.0.27
/var/cpanel/envtype:hyper-v
grep: /etc/cpupdate.conf: No such file or directory