Hi,
I am moving from Exchange 2010 to 2013. I am on all the latest service packs for both so coexist is supported.
When I setup my Exchange 2013 environment all settings moved over properly and are working. One thing that I haven'tbeen able to get to work though is mail flow. I am trying to send email from one mail server to the other, on the same LAN/Domain. I thought I had the send/receive connectors correct.
The new Exchange 2013 server is not setup to relay mail to the internet yet because I don't have the NAT policies setup.
What is the proper configuration of the connectors to test mail flow between servers?
My Setup: Exchange 2010 - Mailbox Server, UM Server, CAS Server
Exchange 2013: Mailbox/UM Server, CAS Server
Send Connector --> Send to Internet --> added the Exchange 2013 Mailbox role to this
Receive Connector --> Default Frontend Connector for the Exchange 2013 CAS Server --> Port 25 for all IP addresses.