Yes, you can. All you will need to do is update your email address within the CBANC Community. This can be done from the Account Settings page which is accessed from the account dropdown in the upper right corner of the CBANC Community.
Once inside the 'My Profile' section of the account setting you will need to click the 'Edit' button in the profile section.
This button will open up an edit modal from which you can change different values for your profile. Whenever you are finishing, simply click 'Save' at the bottom of the modal to apply your changes.