Installing Exchange 2010 along side Exchange 2007
Email flow from Exchange 2010 to a mailbox on 2007 fails
In the Queue Viewer Hub Version 8, Delivery:SMTP Relay in Active Directory Site the Last Error listed is 4188.8.131.52 DNS Query Failed, The Error was: SMTPSEND.DNS.NonExistentDomain;nonexsistent domain
Guess there is an issue with my DNS but what??
All other email from these servers are OK External and from 2007 to 2010