After changing your email address, you need to change the settings in Thunderbird to use your new email address.
- Start Thunderbird.
- From the Tools menu, select Account Settings.
- Click once on your UTORmail account.
- Ensure that the top of the window now says Account Settings.
- Under Default Identity, enter the new email address next to Email address.
- If you have something in the Reply-to Address field, change it to the new email address.
- Click OK.