So I got a new dedicated server, and migrated everything over to in last week.
In the last few hours, ive noticed emails are being rejected by hotmail, msn and live. All emails sent from any account on the server are rejected. This is the error messag I get back from these services when email is sent to them
2009-11-08 23:05:01 1N7OJB-0005h6-73 ** firstname.lastname@example.org
R=lookuphost T=remote_smtp: SMTP error from remote mail server after MAIL FROM:<email@example.com> SIZE=1939: host mx3.hotmail.com [220.127.116.11]: 550 SC-001 Mail rejected by Windows Live Hotmail for policy reasons. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation problems. If you are not an email/network admin please contact your E-mail/Internet Service Provider for help. Email/network admins, please visit http://postmaster.live.com
for email delivery information and support
Anyone have any ideas on why this is happening? Ive checked all of the IP addresses given to me and that are is use on the server, and none of them are blacklisted. This is kind of frustrating me.