- To setup event tracking go to My Account > Account Preferences > > Event tracking (triggers).
- Add the Endpoint URL above and select check the box for "Bounce events" and "Spam events" from the list of events.
You will also have to verify the sender emails or domains. The sender here means the email or the domain of the email address used to send the email campaign from.
To verify the email/domain go under My Account > Sender & Domains > Sending Parameters and set the Domain List or the Sender List.
Make sure all the email addresses you are using to send emails from are verified or their domains are verified.