In a test environment i have done an upgrade from an Exchange 2003 install to Exchange 2007. I followed this guide - Transitioning from Exchange 2000/2003 to Exchange Server 2007 (Part 3)
On the old exchange 2003 worked fine but i am getting the following bounce message when i try to send a message:
and nothing is coming in.Quote:
Delivery has failed to these recipients or distribution lists:
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
The following organization rejected your message: mx.google.com.
I am not sure if the bounce message is to do with it being a dynamic IP but what about coming in?
I dont need to change any public DNS setting as they where already set for the old box and i have set the firewall to forward to ports to the new server.