On Wed, Aug 31, 2011 at 04:27:00PM -0400, m.roth@5-cent.us wrote:
Stephen Harris wrote:
Anyway, the SMTP server should send the delivery failure to the envelope address, which may be different to both the From and Reply-To addresses.
That would be lovely. Unfortunately, a high percentage seem to use the Reply-To address. Trust me, the last four or five months, I've gotten probably hundreds, if not more, of delivery failures. And I wind up at least glancing at them, in case email to this list, or to a friend, has bounced.
Envelopes can be forged just as easily as any header.