It appears that George Michaelson <ggm@xxxxxxxxxxxx> said: >If a message had an EXPIRES-BY header, semantically past it's "due" >date, and an intermediate store-and-forward SMTP MTA decided to look >in its queue, would it be "wrong" for it to return to sender rather >than deliver? If the header could be shown to be origin specified, and >not arbitrarily added? That seems wrong to me for too many reasons to count. We have been trying for ages to get rid relays that inspect and modify relayed messages. MIME down-encoding is I hope gone, and the only plausible excuse these days is malware scanning. Also, there is no reason to assume that the origin's intentions were benign when it added the header, and I do not want to do any second guessing. The next rev of the draft will take out all the advice about deleting messages automatically. R's, John -- last-call mailing list last-call@xxxxxxxx https://www.ietf.org/mailman/listinfo/last-call
