Until today, I avoided using polls in my emailed posts. I assumed the UX wouldn't be great.
The product folks at Skool are, of course, way ahead of me.
If you include a poll in a post you email to your members, your email will have a "Vote Now" button instead of the usual "View Post".
It's a subtle difference. But, it is exactly the CTA I wanted.
That's all. I hope this helps somebody.