Emails sent to AOL accounts are deferred

Why would emails be deferred when sent to people with aol acocounts only. Everything is is flowing good such as people with gmail, yahoo, etc..

The reason is that AOL, in their wisdon, reject connections from a lot of mailservers. To see the exact message try this: 'telnet mailin-01.mx.aol.com 25' and see what error they throw.

Well, your server probably doesn't have reversible dns entry - AOL block those servers...

thanks for the reply.