I wish more people capable & confident to do so would run their own email services, and provide access to them for their communities (who would hopefully realise the great benefit of having a family domain). That'd help to undermine the current cabal of mostly ill-intentioned email providers out there. Email's too important to trust to a colossal corporation that sees you (and your correspondents!) as a resource to be data-mined. Plus, it really isn't nearly as hard as people make it out to be.
I'd be happy to share my notes - I'm no hosting genius, but I've been running email services that are great to use, full-featured, and provide user-friendly delegation to others wanting to manage their own domains &/or mailboxen. Happy to share my notes.
@lightweight The big question is deliverability. When I've tried this, I've ended up spending lots of time trying to convince -- sometimes successfully, sometimes not -- large providers that the emails coming from our service were not spam (which they 100% were not, by the way). The burden of those interactions was very high, but the price of not engaging in them was that our users could not send email to anyone with, e.g., a Hotmail address.
How did you solve this? Or do you not have this problem? Or do you have it but tolerate it?
We knew about SPF/DKIM/DMARC, and AFAIK implemented everything correctly. I'm sure that helped -- our delivery rates would have been much worse without that. But still, some providers are just eager to reject, and yet sometimes people you want to reach are using those providers.
@lightweight Ah, you've just been having better luck than we had, okay. I'm glad! I just wish I knew how to replicate your success. The suggestion to test with mail-tester.com (made in your follow-up reply) is helpful -- thank you.
@kfogel I've had relatively few rejections from the big players - when i have, it' been for a short period (a day or so), due to their lazy policies of blocking deliveries from entire network blocks based on one spam host... but hasn't been major. Of course, the more of us there are, the less the behemoths can ignore us and get away with lazy practices...