i know this thread is old, but i wanted to say that the "anti-alias" vendor who blocks legitimate email alias vendors serves mostly themselves, for whatever reason. i use "trashmail.com" for all my signup emails, keeping my top level protonmail kinda close to the vest. i have done this for a decade now, and as a result i have less than 10 spam emails, as i'm just not any lists.
would be nice if you allowed this...
just my thoughts. OH!, seriously this is one of the best resources for permies on the net! thank you so much!