Hi all, 

I have an issue on my exchange server. All emails function correctly but when emails are send to the hotmail, msn, live domains, they fail.
The following error appears.

BAY0-MC4-F48.Bay0.hotmail.com 
SC-002 (BAY0-MC4-F48) Unfortunately, messages from xxx.xxx.x.xxx weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/

I checked with my isp and they are not blocking any ips and all the domains hotmail, msn, live are white listed . 
After searching the error message SC-002 I found this:

“Emails rejected by Outlook for policy reasons. The email server IP connecting to Outlook has exhibited namespace mining behaviour. If you are not an email/network admin please contact your Email/Internet Service Provider for help.”

I would appreciate any help in resolving this error so the ip can be unblocked.

Thanking You
Matthew Swain

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