The original message was received at Wed, 6 Jul 2005 13:38:12 -0400 from [208.58.60.242] ----- The following addresses had permanent fatal errors ----- (reason: 550 RCPT TO: User unknown) ----- Transcript of session follows ----- ... while talking to mk-cpfront-10.mail.uk.tiscali.com.: >>> RCPT To: <<< 550 RCPT TO: User unknown 550 5.1.1 ... User unknown