The original message was received at Sat, 5 Jan 2008 17:16:45 +0100 (CET)
from localhost [127.0.0.1]
----- The following addresses had permanent fatal errors -----
<solar-energy(a)ise.fhg.de>
(reason: 550-Callout verification failed:)
----- Transcript of session follows -----
... while talking to mail-gw.ise.fraunhofer.de.:
>>> DATA
<<< 550-Callout verification failed:
<<< 550 550 Unknown user: solar-energy
550 5.1.1 <solar-energy(a)ise.fhg.de>... User unknown
<<< 503 valid RCPT command must precede DATA
