Mail Flow to Exchange Server in cloud (AZURE)

Hi !

This is Ankit, I have created an Exchange Server 2013 in Azure along with a Domain Controller.

The domain name that i have used while creating the environment is not registered.

I have a domain in Godaddy which I have added as UPN suffix for my testing domain environment.

I need to check the Mail Flow from gmail to my domain.

Kindly guide me which all configurations are needed to achieve my task.

Things to note : >I have to update DNS records in Godaddy
                         >which all records need to be updated at DC end
                         >which all kind of settings need to be done on Exchange Server

Thank You in advance.