Hi Andy, > I also find it hard to beleive that someone wants the MUA to have a > specific Message-ID for their email
People do all kinds of odd things. Like fully justify text on a media with coarse adjustment. :-) Wanting to specify the whole message-ID field is distinct from wanting to set the trailing ‘@...’ part. - The whole field could just be given as yet another field in the header, though currently nmh will complain it's an ‘illegal header line’. - Setting just the domain part is a more common need. It's tied in to adjusting the From field, and which party takes on the email for delivery. Otherwise, emails from foo.com leak the bar.com identity. -- Cheers, Ralph.