How can I change the email address of a user?

For security reasons, it's not possible for account administrators to change the email address of registered (invitation accepted) users. Only users themselves may change their address. Then a project owner can invite them under their new address.

This is the recommended procedure:

1. A project owner sends a new invitation to the user's new email address as described in Adding people to projects.
2. The user logs in with their old email address and changes it to their new email address as described in Adjusting your profile settings.
3. The user accepts the new invitation. The user will receive notifications only at the new email address.