I use Migadu myself and have nothing but compliments for them. They do offer a calendar but it's only as a bare-bones complement to their main focus of email, s

I use Migadu myself and have nothing but compliments for them. They do offer a calendar but it's only as a bare-bones complement to their main focus of email, so if you do not care about having invite responses and the like and just want: X is happening at Y functionality it's perfects for that too. I feel like they really care about how they offer their service and given how laser focused it is that translates into me being extremely satisfied with their offering.