Work of filters in newer versions of the control panel
There are two levels of filtering in control panel "User Level
Filtering" (for an individual mailbox) and "Account Level Filtering"
(applies to all mailboxes of account).
1) Account Level Filtering
Backup of filters, which can be created through the control panel
cPanel -> section "Backups", is created just for this type of filter,
while you download the file of the following type "filter-DOMAIN.gz".
There is a simple text file with the filtering rules inside this
archive. It restores without problems, but with the nuance that it is
not shown in the control panel, although fully functional. In order to
recover once you've created a filter to another domain you just need
to change part that is responsible for the domain name in file name
and use the restore function from the control panel cPanel ->
"Backups". You can check the filter creation from the command line by
typing less /etc/vfilters/DOMAIN
2) User Level Filtering
Although backup of such filters can't be created, it is much easier to
manage them as well as access to the filters you have via FTP and
during copying they even appear in the control panel and are
The filters for each mailbox are located on the path
/home/USERNAME/etc/DOMAIN/EMAIL/filter - the filter itself
/home/USERNAME/etc/DOMAIN/EMAIL/filter.yaml - file that is responsible
for filter to be displayed in the control panel
So it is enough to copy these two files in a directory of another
mailbox and the filter will be applied to it.
USERNAME - your username in the system
DOMAIN - domain name for which you want to apply or is already
EMAIL - the short name of the mailbox (before the "@"), for example
firstname.lastname@example.org - EMAIL=test
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