Most of my company emails are sent through Mailjet, but a few of our automated processes are not compatible with Mailjet's API. As a result, we're required to send a small portion of our transactional emails through external sources.

I think it would be really useful to have a feature that tracks analytics for emails sent outside of Mailjet's system (similar to Google's Tracking Pixel) so you could gather insights on email performance even when sent via external platforms. This would be really helpful for maintaining consistency in analytics and reporting.