----- The following addresses had permanent fatal errors -----
<hbm86858@tt-line.com.au>
(reason: 550 5.1.1 <hbm86858@tt-line.com.au>... User unknown)
----- Transcript of session follows -----
... while talking to mail.tt-line.com.au.:
quoted 1 line DATA>>> DATA
<<< 550 5.1.1 <hbm86858@tt-line.com.au>... User unknown
550 5.1.1 <hbm86858@tt-line.com.au>... User unknown
<<< 503 5.0.0 Need RCPT (recipient)