Cannot email AOL from second Exchange 2003 Server

We recently installed a second exchange and started migrating several users mailboxes.  Every user that has been moved to the new server is reporting that they are unable to email AOL and receive undeliverable messages.  When any of the users are moved back to the original exchange server they are able to email AOL without issue.

Any help with this matter would be greatly appreciated.
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Network_Data_SupportConnect With a Mentor Commented:
this will deff be DNS issue. either you have no PTR for the second server or the PTR does not match the A record
Has the second box been setup correctly? Does it have its own reverse DNS entry, the SMTP virtual server configured with the correct FQDN etc?

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