How to change the default mail address !!!

How to change the default mail address !!!

Hi

I have registered with Zoho with "xxx@gmail.com" email account. At the time of setup of the domain i was asked to provide a default email address. It created an email address as "myname@mydomain.com" and linked the two email addresses.

I am not able to access the myname@mydomain.com email address via POP. Kindly suggest as to how I can delink the same and can use the myname@mydomain.com email address via POP.

Thank you.

Karan Chowdhary