Delete Notifications Settings (SMTP)
DELETE {{apiPath}}/environments/{{envID}}/notificationsSettings/emailDeliverySettings
The DELETE /environments/{{envID}}/notificationsSettings/emailDeliverySettings
operation resets the SMTP notifications settings for the specified environment to its default (the built-in PingOne email service).
A successful DELETE operation returns an HTTP 204 OK status, and removes the configuration for the organization's custom SMTP server.