ESP Definitions and Integration Architecture – Help Center

ESP Definitions and Integration Architecture Overview

Authentication: Verifying the identity of users who want to access an API.
Check: Checking mailability prior to sending a Wunderkind email
- Opt-out Check: If a user is not explicitly marked as not mailable (unsubscribed, not consented) within your ESP, we consider them mailable. Ie. If a user is not in the ESP or does not have a consent event, they will be mailable. This is best practice within the United States.
- Opt-in Check: Only users who are explicitly subscribed or have consent event will be considered mailable. This is best practice outside the United States.
Set: Updating a user’s status in the ESP after unsubscribing from a Wunderkind email
Wunderkind Sender Integration: Wunderkind will deploy triggered emails on your behalf through the Wunderkind ESP.
Client Sender Integration: Wunderkind will pass a fully-rendered email to your ESP for deployment
URL Appending: A reverse lookup within the ESP to identify users that click through a marketing email