cPanel's filter editor does not provide all the functionality a client needs, so they have edited the /home/$user/etc/$domain/$mailbox/filter file manually.
In this case they need to send a brief notice to another offsite mailbox indicating new mail has arrived, without quoting the message, so they are using the exim "mail" command.
The filter works, but of course they can't use cPanel's filter editor to add/edit other rules because it wipes out the custom one. If there a way to put custom rules in a filter.local file or something along those lines that will be appended/prepended whenever someone uses the filter editor to make a change?
In this case they need to send a brief notice to another offsite mailbox indicating new mail has arrived, without quoting the message, so they are using the exim "mail" command.
The filter works, but of course they can't use cPanel's filter editor to add/edit other rules because it wipes out the custom one. If there a way to put custom rules in a filter.local file or something along those lines that will be appended/prepended whenever someone uses the filter editor to make a change?