Right now the email is hosted at the hosting company and we use the built-in pop connector on the SBS to retrieve the email. I have made the appropiate changes to the server (hope I did it right) to host the email in house, opened the ports on the router but before I request the MX record pointer to be changed. I wanted to know if there is a way to test the modifications that I made to make sure that everything is working properly.
I really don't want to change the MX record and find out that I have to spend days troubleshooting since my experience with Exchange is limited.
Your help is appreciated.