From: "Eric Thomas" <[log in to unmask]> > My experience is that keying > on the subject is a bad idea as they come in umpteen different languages :-( I, too, would prefer keying on the functional components of the message. For anyone who had trouble finding them, the MIME headers for the attachments had these characteristics: Content-class: urn:content-classes:recallmessage Content-class: urn:content-classes:recallreport Apparently, the recalled message is only identified by subject line. That (and the name of the recall sender) appear in text in the recallmessage part, which apparently isn't visible to systems not supporting the content-class. Richard Helmke's suggested filters probably have the best dispositions: REJECT the recallmessage (with a "please don't do that!" notice), and DISCARD the recallreports. Hal Keen