[jasode]

>I hate the fact that your comment got flagged / greyed out / whatever even though it's perfectly correct. [...] I don't know why our experiences are considered "anecdotes", and not the other way round.

It's because people who successfully self-host think their situation universally applies to everyone.

Here's another example from 2017 of someone replying to my previous reasonable comment about self-hosting by overconfidently saying I was exaggerating the issues : https://news.ycombinator.com/item?id=15526127

And then 18 months later in 2019, that same person reveals they also got their sent emails rejected by Gmail : https://news.ycombinator.com/item?id=19757607

So they end up solving it by "outsourcing" the outbound email to a relay (SendGrid).

So my comment gets downvoted for explaining what others had to do in the real world.

The following should not be a controversial statement but for some reason it is: Correctly configuring SPF/DKIM/DMARC and getting 100% green score on https://www.mail-tester.com/ for your self-hosted setup ... does not universally mean your outbound email will get accepted by all the services.

[Krei-se]

Read the logs from Gmail and Microsoft, they will tell you exactly why the mail was filtered. Act on that problem and have your mail appear in inboxes.

It's usually relaxed DMARC triggering Microsoft. Gmail accepts relaxed.