It's not about configuration but rather your IP reputation and the struggle to not have your mail go straight to addressee's spam folder.

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throw-12-16 2 hours ago | parent [-]

Thats just a matter of buying a decent IP and setting up DMARC and DKIM.

I see this reasoning as the #1 reason not to self host, but it really isn't a big issue once you do the initial setup.

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kassner an hour ago | parent [-]

> Thats just a matter of buying a decent IP

Please expand on this. Public cloud IPs would be on spam lists, and providers like Hetzner and OVH aren’t any better. Where does one go to buy a decent IP?

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throw-12-16 an hour ago | parent [-]

Use an IP reputation tool like https://mxtoolbox.com/blacklists.aspx

What you will find is that many dedicated IP's from larger vendors are fine.

I personally use Hetzner and don't have any issues with reputation at all.

	▲	kassner a minute ago \| parent [-]
		I had troubles with Apple blocking a bunch of range IPs from OVH, because they don’t handle abuse claims. It didn’t show up in blocklists at the time, but was in practice unusable. IME anything that can be purchased by an average developer is in some list nowadays.