Show HN: Composed – A tollbooth for your inbox
getcomposed.comIf you'd like to read a little more about why I built this, I wrote a small post on the subject: https://medium.com/@dreadpirateryan/time-money-and-email-b1b...
IMO, 20% sounds exorbitant.
That may be the case. Pricing for this service is still something I'm figuring out.