I receive message from hotmail as below:

COL004-MC3F45.hotmail.com rejected your message to the following e-mail addresses:<o:p></o:p>

COL004-MC3F45.hotmail.com gave this error:
SC-001 (COL004-MC3F45) Unfortunately, messages from 210.213.49.32 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

I've check, our IP is not on spamlist.

I've check the MX record all reply OK, except warning smtp reply a bit slow.

How can I correct this issue. Please help.

my email address are:

[Removed email addresses]

Best regards

• Edited by Melon Chen CHNMicrosoft contingent staff, Moderator 4 hours 56 minutes ago removed email addresses

You will need to contact hotmail.com/outlook.com directly

See:

http://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/error-550-sc-001-col004-mc4f26/a23de53c-c09a-46c1-9f8a-1f81b5219dc4

Hi,

I agree you should contact Outlook.com support:

http://answers.microsoft.com/en-us/outlook_com

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

Regards,

Melon Chen
TechNet Community Su