Hello Friends,
I have 2 Forests with one Exchange 2013 server on each one.
One domain controller per forest but only one DHCP located in Forest A.
Exchange Server in Forest A can e-mail any user of Exchange server in Forest B.
Users on server B cannot e-mail any Users on server A.
Both servers are configured to route mail externally using a dirrent Public IP with NAT.
Both servers are on the same subnet 255.255.0.0 but on a different range.
One is on 10.0.1.xx and the other is on 10.0.30.xx
Both can send and receive to any other domain withuot problems.
Mail sent from Exchange server B to Exchnage A stays stuck in mail Queue with retry status.
Bouce message:
Remote Server at pxxxxx.com (10.0.1.xx) returned '400 4.4.7 Message delayed'
2015-06-08 1:46:48 AM - Remote Server at p-reference.com (10.0.1.xx) returned '441 4.4.1 Error encountered while communicating with primary target IP address: "Failed to connect. Winsock error code: 10060, Win32 error code: 10060." Attempted failover
to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was 10.0.1.46:25'
Any help would be greatlyappreciated!