How can I delete email subscriptions?

Are you referring to the email notifications? If you don't want to receive an email when someone completed your form, then please delete the notification. Here's how:

In the Form Builder, click "Settings" in the top menu and then go to "Emails" section. Select the notification and then click the "Delete" button.

Related guide: How-to-Delete-Notifications-Autoresponder

If you're referring to a different issue, please let us know. Thank you.