you can check your delivery rate with services there are lots that are free to check and they also offer to "warm" your reputation. I have not done that yet (money!) and outside this:
- Outlook.com consumer mail addresses
you can still get >99% delivery rate if you have spf, dkim and all the new cool stuff.
So no, please DO NOT recommend against doing it because ONLY if mail stays a decentralized service providers will stay forced to not blacklist everything but other large providers.
Easier to self host inbound and relay outbound. SMTP relays are effectively a commodity and pennies for personal usage. Worth <$1/yr to not screw with IP rep unless you own a /24. Less than /24 you risk some knucklehead getting the whole block listed
I used to run mail servers for a university and I also suggest that no one should do this. It's hard enough to get right when it's your full time job. No one wants that kind of headache just for an email address. Do what I do and pay for Proton and stick your domain on it.
"Hacker"news: Don't actually do it yourself man, just pay someone!
Running your own email infra is not at the same level as the usual “self hosting”. Not to mention that email can be critical and missing an important email can burn a lot. Why put in that much effort on your free time, and take the risk?
You don’t build your own fridge. If it’s important and not your strong suit, pay someone to do it for you.
Have you actually measured delivery rate of some service vs. doing it yourself?