In order to receive email bounce notifications, you need to configure your app to enable email notification and you need to create a handler to handle those incoming notifications.
Configuring your application for email bounce notification
There are two parts to the configuration. First, you need to enable
notification. Second, you need to set the mapping between
/_ah/bounce and your bounce handler, so App Engine knows where to
POST the notification data. To configure your app to receive bounced email
notifications:
Add the following to your
app.yamlfile to enable notification:inbound_services: - mail_bounceAlso in
app.yaml, declare a mapping between/_ah/bounceand the bounce notification handler in your code, for example:- url: /_ah/bounce script: _go_app login: admin
Handling bounce notifications
In your app, you'll need to supply bounce handler code to receive and process the notifications.
The bounce notification will be sent to your app as a POST request to
/_ah/bounce. Information about the bounce will be form-encoded in the body of
the request.