Your email address can only be changed from the web vault.
Changing your email address will log you out of all bitwarden applications.
- Log in to the web vault at https://vault.bitwarden.com
- Click Settings on the sidebar
- Click Change Email under the General panel
- Type in your master password and the email you want to use
- Click Submit
- Check your email inbox for the verification code from bitwarden and enter it into the textbox
- Click Change Email
- Log back in to confirm that you can log in using the new email
- Log out and back in to any other bitwarden applications that you are using. You will eventually be logged out automatically.