I'm 1000% behind them existing and am planning to toss them a donation cause I like that these FOSS alternatives exist, but I'd rather not have to manage my own in the end.
I've gotten past the stage of wanting to do it all on my own and hit the point where I'd rather pay a company to do it so I can go about the things I want to do in my free time (hobbies and spending time with my kids). I know it means I'm potentially trading privacy for this convenience, but it's something I've accepted in this case.
My new campaign is convince the spouse that we should move away from free email into paid.