The original message was received at Sun, 13 Jul 2003 16:58:09 +0300 (EEST) from prom.ds12.agh.edu.pl [149.156.124.12]

----- The following addresses had permanent fatal errors ----- billing@palnet.com (reason: 550 5.1.1 billing@palnet.com... User unknown)

----- Transcript of session follows ----- ... while talking to mail.palnet.com.:

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<<< 550 5.1.1 billing@palnet.com... User unknown 550 5.1.1 billing@palnet.com... User unknown <<< 503 5.0.0 Need RCPT (recipient)