GoTo www.google.com/a and sign up for an account
If you already have a Gmail email you can use this account as the primary account to setup all the settings, or you can sign up for a new Gmail account
Setup Domain Details.
Your Name, Your Organization, how many users, etc…
Setup the Primary Master account
Setup What applications you want
For most of you your just going to want to setup Email and Calendar
The most difficult part is the Changes to DNS you will have to make.
These next steps below are copied directly from Google. They maybe a little different depending on what domain host you use.
Sign in to your domain hosting company’s website using the username and password associated with your domain.
Navigate to an MX record maintenance page. MX records are special DNS (Domain Name Service) records, and are often located under sections titled “DNS Management,” “Mail Server Configuration,” or “Name Server Management.” You may need to turn on advanced settings to allow editing of these MX records.
Delete any existing MX records before entering new MX records.
For each MX record, enter information according to the entries in the following table.You may not be allowed to enter the priority values exactly as they appear in the table below; in that case, simply ensure that the server addresses are prioritized in the same order as they appear in the table. (i.e. The priority ranking [1, 3, 3, 5, 5, 5, 5] should work just as well as [1, 5, 5, 10, 10, 10, 10] so long as you keep the addresses in the right order.)If you’re asked to specify the type of each record you’re adding, enter “MX”.
MX records often require the specific format of DNS records, including a trailing dot (“.”) at the end of any full-qualified domain names (e.g. “server.example.com.”)
Set any TTL values to the maximum allowed.
MX Server address
If you need any more help with this Contact Us and we will help you set it up.