Mail rejected by Outlook for policy reasons??

13. January 2014 · Write a comment · Categories: Uncategorized · Tags: , ,
SMTP Error Code [550 SC-002]
Mail rejected by Outlook for policy reasons. The mail server IP connecting to Outlook has exhibited namespace mining behavior. If you are not an email/network admin please contact your Email/Internet Service Provider for help.

Is this a known issue as several users are having the same problem??

SMTP Error Code 550-OU-002

22. October 2013 · Write a comment · Categories: Hotmail, Outlook.com · Tags: , , ,
I am receiving SMTP Error Code 550-OU-002 when send email from mail domain laotel.com to Hotmail account.


Undelivered Mail Returned to Sender as below:


This is the Spam & Virus Firewall at Barracuda.laotel.com.

I'm sorry to inform you that the message below could not be delivered.

When delivery was attempted, the following error was returned.

 

 

<*** Email address is removed for privacy ***>: host mx1.hotmail.com[65.55.92.168] said: 550 OU-002

    (SNT0-MC3-F42) Unfortunately, messages from 115.84.127.11 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/troubleshooting.aspx#errors. (in reply to MAIL

    FROM command)


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