Go to Google business solutions; make a search in Google for Google business solutions. Then select Google apps, which take you to Google business apps solutions web site. In the official website you will find 30 days free trial version where you can use it if you like, else you can cancel the account. The trial version offers the entire feature you would like to test. Once you click on the 30 day trial versions, it asks you for the real domain name that exists, enter in your real domain like XYZ.COM, now it asks you to sign up with Google apps premier edition.
Setting Up Google Apps Premier on Cloud
In the sign in screen, enter all the details and the last option you see is current email solution: here select the exact email solution your company is using, like exchange 2007 or lotus etc.
Then move to the next screen where you will find purchase option, here you need to enter in your credit card details. But you will be not charged until you finished the 30 days trial version. You need to cancel it for 30 days if you’re not willing to use Google apps.
Once you’re done with the Google apps purchase options, you can access your Google apps domain. Here you need to create a new admin account. Then you need to activate your account to make sure you’re the owner of the XYZ.COM Company. In order to do this you need to upload a HTML to XYZ.COM using FTP logins or change the XYZ.COM CNAME record.