I agree that self-hosting email would provide a LOT of teachable moments! You folks have found out already just HOW monumental this task can be. I think you're all better for it; you have a very informed opinion. Which...is why we all keep listening and watching! Aloha!
The IP addresses you're using matter a lot. One time I had to go through claiming ownership for a subnet on outlook with my hosting provider as the previous owner got it blocked for spam and all messages would get refused.
I agree. I do self-host as well and it works pretty well. Takes some time, sure. But it doesn't get blocked by other providers. Email has been designed to work in a decentralized fashion and if anyone would start blocking for no reason it would be really bad for everyone. Just set up your SPF, DKIM, DMARC, reverse DNS, TLS and everything else that goes with it!
What if you're really poor, trying to start a social network/user marketplace, need to send lots of emails, and free 200 emails a month or even 1000 isn't enough? I need to be able to compensate for users wanting email sent for the various things they can get notified for. And 1000 users could easily break that without unlimited sending. And what if I see a growth spurt and can't keep up with everyone trying to simply sign up? There's a reason to host email, I'm finding, since so many SMTP offerings aren't enough.
Relevant after the proton CEO apparently supports Trump. I don't want to give my money to Trump.
@ChristopherPerrin