Confirm your new email address
After you save your changes:
- Open the confirmation email sent to your new email address.
- Click Activate Address.
- When you’re redirected to the Dropbox Sign log in page, log in with your old email address and password to confirm the change.
If your new email address is already in use
If you see an error that states the email address you’d like to use already exists, then you’ll need to:
- Log in to the account of the email address you’d like to remove, then delete that account.