How do I change my email connected with this account so that notifications about sign ups come to the new email?

Thanks for reaching out.

You can change your email address in myaccount page under Profile > Email.

You may also want to check our guide here https://www.jotform.com/help/41-How-to-Find-and-Change-the-Email-Address-Used-for-Notification-Email and see if that helps.

Please let us know if you have any questions.