From: Help on
Hi All ;

My server systems : oldserver-exc2007, newserver1-exc2010 ,
newserver2-exchange2010 ( 2010 systems DAG enabled)

I have migrated my mail server from exchange 2007 to exchange 2010 systems.
I m moving some mailbox to the new servers. But i can send e-mail from old
server (old(a) - exchange 2007) to new server
(new(a) 2010 )
i CANT send mail from new server (new(a) 2010 ) to the
old mail server (old(a) Exchange 2007)

All servers in same organiziation, same network, same domain. I havent
create any connector. ( Because dont required?) Exchange 2010 servers can
send mail outside organizations.

How can we solve this problem ? thank you