[otrs] get email address from email Body and add as ContactID - Gave it a shot

Ok, need a little help with the "How to" . I looked in Admin under Postmaster Filter, I saw no option for Body so I went into Core::PostMaster. Since I didn't see a PostmasterX-Header for Body, I added one. Then I checked Postmaster::PreFilterModule###1-Match: For the Match I put Body and the Set to X-OTRS-CustomerNo. That is about as far as I can get. I got a regular express that is supposed to look for any email address: \b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b so I assume that will go with the match, but I'm at a loss as to what would go in the set to set the email address that it finds. Barry Keyles