If you need to clean out the incoming que from the mail cleaner que try the command below in the SSH.
If you want to test first run
/opt/exim4/bin/exiqgrep -C /usr/mailcleaner/etc/exim/exim_stage1.conf domain.tld
If that shows the emails that you want to remove try
/opt/exim4/bin/exiqgrep -C /usr/mailcleaner/etc/exim/exim_stage1.conf -i domain.tld | xargs /opt/exim4/bin/exim -C /usr/mailcleaner/etc/exim/exim_stage1.conf -Mrm
