Hi Everyone,
I have an exchange 2010 server which I am trying to move away from. I have installed 2013 and it seems to be working well. I have successfully moved a mailbox over to 2013 without any issues.
The problem i have at the moment is that a user who has their mailbox on the 2010 server can send to the user on the 2013 server. However the 2013 user cannot reply.
Any ideas?