Recently we have been receiving a lot of notification messages from a client and there ticketing system. Its a message with specific subject line that I would like to delete. I thought that the Auto Clean function might be just what I wanted but it doesn't seem to allow for use of: Delete messages with X words in the Subject if older then X days.

Is there a way to write the statement myself with xml? I made a rule just testing the function on the VM but I'm not really sure where to start.