We have
Exchange Server 2007 using our domain ddd.com.
We created an isolated network with a firewall/gateway and installed a DC and
Exchange Server
2010 using a demo/test domain (ddd.loc).
We opened all the needed ports in the firewall (10.10.2.88) to the
Exchange Server
2010.
In our main Domain Controller (10.10.2.3) we defined the domain ddd.loc with IP 10.10.2.88 (firewalls). We also we defined MX records to the same IP (10.10.2.88)
We did that so when we send email from my email
[email protected] it will go to the
Exchange Server
2010.
Anyways, all the pings test from to any servers are OK.
But we are not able to send or receive emails. Between these
Exchange Servers
we can not send any email from the
2010 to any email in general (emails are pending).
Also, in
Exchange 2007 we are getting error #550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##