Granted, I have been running mail for a long time, so I got to learn the complications as they happened, rather than all at once. But anyone who can set up a production-quality web server/appserver/DB along with the accessories that go along with it can handle it.
Now if email isn't important to your business and/or you just don't want to deal with maintaining it, that's valid. But it just isn't as difficult as a lot of people seem to want to make it out to be.
Are you using Sendmail?
Not in a long time. I haven't found a situation in which I couldn't use Postfix in quite a while. Although the occasional sendmail.cf flashback still hits me.
that's why I asked.
I think such an approach could be interesting, but it seems there is a need for a non-profit to govern such a thing.