below is the message bounce that keeps getting returned even though the
address, [log in to unmask] is up and live and active.

I hope you have some ideas.

thanks.

Brian
-----Original Message-----
From:   Mail Delivery Subsystem [SMTP:[log in to unmask]]
Sent:   Tue, April 28, 1998 6:34 PM
To:     [log in to unmask]
Subject:        Returned mail: User unknown

  The original message was received at Tue, 28 Apr 1998 18:33:45 +0300 (IDT) from ts006p6.jlm.netvision.net.il [194.90.120.116]
----- The following addresses had permanent fatal errors -----
<[log in to unmask]>
----- Transcript of session follows -----
.. while talking to logic.jtsa.edu.:
>>> RCPT To:<[log in to unmask]>
<<< 553 5.1.1 unknown or illegal user: [log in to unmask]
550 <[log in to unmask]>... User unknown