AOL Bouncing Messages

I know why its bouncing them back, my exchange server and the server sending the message to AOL are not the same.

Does anyone have a work around ?

[OUTGOING] I have an Exchange 5.5 server that fw's outgoing mail to a diffrent server, scans it for viruses and sends it out.

[INCOMMING] The same server that sends out the email, will scan the email for viruses, scan for spam then foreward it to the Exchange server.

I'm RDNS compliant, but it looks to me that the bounce backs I get are a result of the sending server and mail server not having the same name.

Any tips/hints would be appreciated,

Thanks!