On Aug 17, 1996 at 16:17, Jerry Schwartz of 1:142/928 wrote:

 JS> The X- lines in an ARPA SMTP header can be used for anything, ANYTHING at
 JS> all.  If some more sophisticated mail system (such as an X.400 compliant
 JS> one) is tunnelling through SMTP, you can find all kinds of stuff in
 JS> there.

Jerry, without quoting something from the message to which you are
replying, I have no idea why you're sending me this!  I certainly don't
recall saying that there were restrictions on "X-" headers.

Oh, and there's no such thing as "ARPA SMTP" - "ARPA"
died a long time ago (in a galaxy, far, far, away?).  ;-)

Cheers..

    - dave
    d.begley{at}ieee.org

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