When sending emails with Twilio SendGrid in Python, you can use Event Webhooks to track the status of these emails. To do this, you'll need to install the SendGrid Python library and Flask as a web framework for receiving HTTP requests. You'll also need to create an API key from your SendGrid account, save it as an environment variable, and set up a virtual environment. With this setup, you can send an email containing a picture using the `send_mars_email` function, and then create a Flask application to receive HTTP requests whenever delivery events or engagement events occur with emails that you sent. You'll need to configure the Event Webhook by copying and pasting your ngrok URL into the SendGrid dashboard. With this setup, you can track the status of emails and see what happens when users interact with them.