I don’t have something setup correctly on my 2010 Exchange Standard. When users send any email out to hotmail and other domains are being reject. Please see the following error message:
SNT0-MC3-F36.Snt0.hotmail.
com rejected your message to the following e-mail addresses:
xxxxxx@msn.com (xxxxxx@msn.com)
SNT0-MC3-F36.Snt0.hotmail.
com gave this error:
OU-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
A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk.
I know I don’t have something setup correctly. I have the Exchange server pointed to two DNS servers. Do I need to have a DNS on the Exchange Server at well? I am just trying to figure out the problem.
So I would focus on checking if your IP address is blacklisted as a spammer. Sites like http://www.mxtoolbox.com/blacklists.aspx work.