Yea, I'd be more likely to write my own if I wanted such a thing. The trouble is you don't want e-mails going out prematurely .. which is why 90 day window is probably best.

And if you host that yourself, there's a chance your credit card could get canceled and your VM/docker container/whatever gets canceled and destroyed before it does its thing. ... but I mean who cares. No you. You're dead! :-P