My problem is this;
I have setup and installed a new version of exchange server 2016 on a virtual server 2012 R2. The domain controller is also a virtual server on the same virtual environment.
The old exchange server is 2010 and is a physical machine all on the same IP network.
DNS and DHCP were originally on the same server as the Exchange 2010 server but have now been moved to the separate hypver v DC, The physical 2010 server now functions solely as a mail server alone and works fine.
However I am struggling to make the new 2016 server send or receive any mail. I have added mx records for it on the dns and tried changing the dns to either point only and directly using priority 10 or have both servers running with the new server as priority 20.
DnS lookup on the new exchange is configured to view the hyperv virtual adaptor and the dns server on that network.
Connectors send and receive are setup the same as the physical exchange server with slight differences to reflect the new dns and exchange server 2016 IP's
Is there something I am missing?
I did find out there was a NAT rule to allow the old exchange server to process smtp 443 and 25 ports but i did still manage to receive external mail only on the new servers test account.
Please help me locate the issue if I am missing something here...