If you want to use temporary email boxes to test your website workflow.
You can try
https://www.mailinator.com/v4/public/inboxes.jsp
It’s a public-free-disposable email box.
Public box means everyone can see the emails in the same box.
You can use any address @mailinator.com, for example, anyone can create a box called [email protected], anyone can see emails in [email protected].
You may check the below video/how to use it
