3.850 why doesn't this address work? (23)

Willard McCarty (MCCARTY@vm.epas.utoronto.ca)
Thu, 14 Dec 89 21:16:50 EST

Humanist Discussion Group, Vol. 3, No. 850. Thursday, 14 Dec 1989.

Date: Thursday, 14 December 1989 1656-EST
From: KRAFT@PENNDRLS
Subject: Dead End E-Mail

Does anyone know why I am unable to reach Joel Goldfield from this CMS
system when I send to the address that appears in the "From" header,
namely unhd!psc90!jdg@uunet.uu.net ? I wonder if Joel knows that this
type of problem exists. I have been rejected twice now by
unhd!mailer-daemon@uunet.uu.net with the message "unknown mailer error
101... bad system name: PSC90 uux failed. code 101 554 PSC90!JDG..." In
the past, I do not recall having problems with the use of "!" in such
addresses.

Bob Kraft