It looked like the message was sent from me, to me, but sadly i have deleted the message.
The message returned from spamhouse was:
The mail system
<crj@itq.dk>: host relay.inet.tele.dk[194.182.148.151] said: 554 Service
unavailable; Client host [212.242.114.238] blocked using
rblplus.combined.foo;
http://www.spamhaus.org/query/bl?ip=212.242.114.238
(in reply to RCPT TO command)
Reporting-MTA: dns; mail.mazive.dk
X-Postfix-Queue-ID: 9D7375A901
X-Postfix-Sender: rfc822;
morten@azm.dk
Arrival-Date: Fri, 3 Jul 2009 16:09:39 +0200 (CEST)
Final-Recipient: rfc822;
crj@itq.dk
Original-Recipient: rfc822;crj@itq.dk
Action: failed
Status: 5.0.0
Remote-MTA: dns; relay.inet.tele.dk
Diagnostic-Code: smtp; 554 Service unavailable; Client host [212.242.114.238]
blocked using rblplus.combined.foo;
http://www.spamhaus.org/query/bl?ip=212.242.114.238