The original message was received at Thu, 26 Jun 2003 07:48:55 -0700 (PDT) from localhost [127.0.0.1] ----- The following addresses had permanent fatal errors ----- <challenge-rsa-list@rsa.com> (reason: 550 5.1.1 <challenge-rsa-list@rsa.com>... User unknown) ----- Transcript of session follows ----- ... while talking to mail.xcert.com.:

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RCPT To:<challenge-rsa-list@rsa.com> <<< 550 5.1.1 <challenge-rsa-list@rsa.com>... User unknown 550 5.1.1 <challenge-rsa-list@rsa.com>... User unknown