Sometimes they try to ocr the emails, so the subject contains things like p1lls or some such. Dave. ----- Original Message ----- From: Tony M Dart To: bcab@xxxxxxxxxxxxx Sent: Friday, October 27, 2006 2:42 PM Subject: [bcab] Re: how does this kind of spam work?, originally Fw: please be discreet Hi Graham Above the gibberish is a picture containing the advert and asking you to re-type the URL to get pills. Tiddy's reply was text only and only contained the gibberish. Being non-text and not machine readable means it passes content filters, presumably. Tony