Email setup on an external device, such as your personal phone or computer, is exclusively available to users with the Mail Pro plan.
Go to "My Websites" page;
Choose "Mailbox" and next to your mailbox, click ,
Select "Client setup";
Here, you will find information about incoming/outgoing information;
Open an email programme you are comfortable with, for example: "Outlook";
Here is an example of how to set up mail account on Outlook