I think the OP is saying to use email to deliver slack messages. If you don't want to use email like email, use something like slack or IRC or teams. Though..

I think the OP is saying to use email to deliver slack messages. If you don't want to use email like email, use something like slack or IRC or teams. Though... reading the comments it's clear people have radically different ideas about what email is for. Probably nothing wrong with that; MSFT's not going to be able to market the next version of teams/skype/outlook if we all agree what our comms channels are for.