You will need your login in email address and your password that you used when you first set up your magic jack.
1) From the Magic Jack softphone keypad on your desktop....click on "menu"
2) then click on "advanced users"
3) then click on "my magic jack"
4) enter log in information and click "log in"
5) this will take you to a renewal screen....dis-regard the renewal
6) click on the gray colored "my.magic jack" at the bottom of the screen.
7) Scroll down until you get to "account email"
Click on "details" 9) Click on "add email address to account"
From there you can delete the original email address.
HOPE THIS HELPS EVERYONE !