The following article explains the steps involved in creating a Mail Group for your domain. Each Mail Group is given a name and contains a list of email addresses that will receive messages sent to that Mail Group.

Log in to your control panel with provided control panel user name and password. Now click link Mail to create Mail Group.

Now select the Mail ID which you want to make Mail Group, or you can Create a new Mail ID for this.

Click on the Mail Group button.

Now you need to Add the Member first.  

For adding member, you can add the User of your domain as well as the mail ID from outside domain(s).

Now you can Switch On the mail group.

The mail ids that have been added  to the mail group are displayed below.

Logout when done.

Now for adding a New mail ID in an existing Mail Group, select the mail ID from the list. And click on the Group icon.

Select mail group from available group, and click Add and then Click OK.

Logout when done.