Each Desktop.com user can change his/her email address associated with the Desktop.com account.
To change an email address:
1. Open the Desktop.com app
2.Click your Profile icon -> My profile
3. Click the Edit profile button
4. Type your new email address, then click the Update button
5. You will need to check your mailbox, the verification email will be sent to your new email address
6. To confirm your email change, click the Activate button and follow the on-screen instructions