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SBS 2008 SP2, Exchange 2007 Cannot send email to certain email address's

I currently have a smart host setup, but would like to move away from this. I had another thread opened about this but nothing was resolved. I have done some in depth investigating and I watched the connectivity logs and my server just keeps repeating Established connection but never connects, the mail just sits in my queue with a 421 4.4.2 Connection Dropped error. I can send to many other email address's but there is about 12 I cannot send to this includes hotmail.com, aol.com, msn.com, I am able to send to my gmail account just fine.  I can post the logs, any help is much appreciated.

I watched the logs come through on a receiving server and my header isn't coming across the way I want it to.

msgid=<1CE0568C2C77D1449B51E4E9CEA41E0505C052ED9864@MCLP01.midcolumbia.local

I need remote.mid-columbialumber.com in place of below. How do I change this?

MCLP01.midcolumbia.local


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