Got this message from someone that tried to reach me.
The result was that the mail to Secretaris@gymKa.be was bounced
However, the mentioned sending ip-address seems to be a hotmail-server.
Can you see whether the gymka.be domain is blacklisted for hotmail?
This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed. Secretaris@gymKa.be
Reporting-MTA: dns;blu0-omc1-s28.blu0.hotmail.com Received-From-MTA: dns;BLU0-SMTP377 Arrival-Date: Wed, 2 May 2012 08:15:16 -0700 Final-Recipient: rfc822;Secretaris@gymKa.be Action:
failed Status: 5.5.0 Diagnostic-Code: smtp;554 The IP Address of the sender (65.55.116.39) was found in a DNS blacklist database
and was therefore refused.