You can change your email address from within the Hullomail app.

1. Using the Hullomail app, select Menu -> Account -> Email
2. Enter a new email address
3. Press 'Save' to commit the change

Please Note: This will show as 'Unverified' until the email sent to the new email address has been actioned.

Once you click on the verification link contained within the email, you will notice this will change to show 'Verified'.