Many of these efforts, to me, look misguided. It’s like wanting to retrofit a hammer so that it can work like a screwdriver, when you could actually go and use a screwdriver — or a hammer, according to what you want to accomplish. There’s nothing intrinsically wrong with email, and while it is a versatile communication tool, it may not be the right one for what you’re trying to accomplish. With all the different communication tools we have in our digital arsenals today, I don’t see the point in wanting to change one at all costs to make it work like others that are already available. This shoehorning is largely unnecessary.
If ain’t broken, don’t fix it. (could be the reason why i’m still using the default Mail.app on iOS and OSX?)