This article will explain how to set up Google apps Gmail with your 123-reg domain.
2
Select the Domain from the drop down box you wish to assign to Google apps Gmail.
3
Click on the Manage icon.
4
Click on the Manage DNS icon under the Advanced domain settings section .
5
Click on the Advanced DNS tab.
6
Now delete any existing records by clicking on delete buttons next to the records you wish to delete.
7
Scroll down and input the new MX Records supplied by Google and click the Update DNS button.
8
The MX records on your domain name will now be setup to use Google apps Gmail
Please Note: It may take between 24 - 48 hours to propagate the changes