I setup an email list as SMTP now I'm having errors.

I setup an email list as SMTP now I'm having errors. How do I delete the email options that are currently there so I can re-add them as verified emails?

If you have added your own SMTP settings for a Custom Sender Email in your email notifications, follow the instruction provided in the link below to know about how to manage it: 

https://www.jotform.com/help/241-How-to-Edit-Delete-Sender-Emails-on-SMTP-Settings