The API and webhooks are great as far as I can tell. Could you add the Subject line too?

The subject line a lot of the times includes things like "Automatic Repliy" or "OOO" which makes it super easy to filter out automatic replies.

I can see there is the sent email body as well as the reply email body, but no subject line.

I love how there is the sent body in the API response, I want to maybe start tracking them in a spreadsheet - so having the subject line would be great for that reason too.