Hi all,
I've added an Exchange 2013 server to an existing domain containing an Exchange 2007 server. All went well and mail flows fine back and forth between 2007 and 2013. I am also able to send an email to an external address from 2013 and it is received. however when i try to reply it never comes back into 2013.
The mailbox i am emailing resides on the 2013 server. What confuses me is that when i send out of 2013 i can see that it uses the send connector on the 2007 server and so flows through it, but it seems as if the 2007 server wont allow itself to relay the return email back through to 2013.
Where should i check in order to get more info? What could the issue be? I dont get any bouncebacks at all. Thanks