Your domain - yourdomain.co.uk

Open Mail and select Mail > Preferences. :-

On the next screen press the + in the bottom left



You will then get the screen below:-

Enter your name in Full Name.
Enter your Email Address (you@yourdomain.co.uk).
Enter your Password as supplied by Tony Oliver.
Press Continue :-

Select IMAP from Account Type drop down.
Enter imap.gmail.com as Incoming Mail Server.
Enter your email address (you@yourdomain.co.uk) as User Name, see above.
Enter your Password - if it's not already in there (shown as a line of ******) .
Press Continue :-

Enter smtp.gmail.com as your Outgoing Mail Server.
Ensure Use Authentication is checked.
Enter your user name you@yourdomain.co.uk into User Name.
Enter your password into Password.
Press Continue :-

If you get this next screen (above), press Connect.
And you should see an Account Summary as below:-

Press Create

Your account should be ready to use.