Similar to others here, what we are doing is building a wrapper application around the webinar and meeting creation and maintenance experience using the Zoom APIs. Part of this app is sending the various emails related to the webinar and meeting lifecycle - confirmation emails to registrants and panelists, update notification emails, etc.
For this to work properly, all emails which normally Zoom sends to meeting and webinar participants should be disabled, so that not to have people receiving duplicate emails for one and the same purpose from our application and from Zoom.
Using the API capabilities and the account-level settings through the Zoom portal, we have managed to effectively stop Zoom from sending its own emails. The one remaining type of email which I could not find a way to stop is the email sent to a webinar registrant when his/her registration is removed from the webinar (when the particular person is removed from the list of approved attendees, not when the webinar itself is deleted). We use the following API endpoint to cancel or deny the attendee - https://marketplace.zoom.us/docs/api-reference/zoom-api/webinars/webinarregistrantstatus
My question is - is there a way to disable the email which Zooms sends to a webinar attendee when the host cancels or denies the attendee registration?