We are having a problem with our email not being delivered to MSN / Hotmail / Live accounts. Following is the error I am receiving in the automated reply from MSN server.
SMTP error from remote mail server after MAIL FROM:<xxxxxx@xxxxxx.com> SIZE=3031:
host mx2.hotmail.com [65.54.188.72]: 550 SC-001 (BAY004-MC1F21) Unfortunately, messages from 198.154.247.42 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 browsed through the contact page of microsoft but none of them lead to an actual contact form.
I also contacted microsoft on +44(0)344 800 2400 but again that doesn't have an option for my query.
What can I do to get my IP Whitelisted?
We host our own email server and have no issues sending out emails to any of our customers except for customers with accounts with hotmail.com, msn.com and live.com.
Here is the response from HELO
This is an SMTP protocol error log for virtual server ID 1, connection #120. The remote host "65.55.37.88", responded to the SMTP command "mail" with "550 SC-001 (COL0-MC2-F42) Unfortunately, messages from our domain IP 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. ". The full command sent was "MAIL FROM:<Sue@grahamcstores.com> SIZE=63950 ". This will probably cause the connection to fail.
For more information, click http://www.microsoft.com/contentredirect.asp.
I have contacted our ISP "Comcast" and they said we are not globally blacklisted so there should not be an issue with sending email to hotmail.
This started happening last Wednesday! I need this resolved today!