Another Exchange 2003 to Exchange 2010 mail flow issue
- by Ryan Roussel
During a migration recently, we came across another internal mail routing issue. The symptoms were identical to my previous post about Exchange internal mail routing. Mail was flowing from 2010 to 2003, from 2010 to the internet, but not from 2003 to 2010. I went through the normal check list looking at permissions, DNS, and…