Edit the User's Email Address to a New One You Control
Users can't edit their own email addresses to prevent them from hijacking a license or documents belonging to the company.
When a user leaves, you can edit the user's email address and change it to an email address you control.
With SSO, this would be done automatically when you remove a user from an access group or changed their system password, but if you're not using SSO, you can
accomplish the same task with SmartDraw's User Administration options.
To do so, login to your account, click on "Licenses & Subscriptions," and choose "SmartDraw User Administration" under Identity Management.