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by yokem55 2039 days ago
It isn't even necessarily 'residential' IP's. It's IP's that don't have a valid reverse dns, preferably one that is also forward resolvable. Most ISP's won't let you set your reverse DNS on 'residential' connections, so it ends up being a blocker. Now you could set up a vpn tunnel to a vps provider that lets you set your reverse dns, and then things get a bit easier.

So prereqs - 1) Valid reverse DNS on your sending IP. Preferably with a hostname that is also forward resolvable. 2) SPF Records 3) DKIM
2 comments
7kay 2039 days ago
You're right, that's the basic ingredient #1 I forgot to mention. Functional rDNS is essential. You don't want to have your mail server running at home anyhow. A friend of mine had a janky setup at home until I convinced him it's a bad idea.
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krageon 2038 days ago
> You don't want to have your mail server running at home anyhow

I do in fact want this. It may not be possible, but I definitely want it to be.

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piaste 2039 days ago
Anecdotally, I have a valid reverse DNS on my home ISP-provided static IP, and when I tried setting up a mail server I got blacklisted on the spot.

(I eventually went with a Tutanota account, fwiw)

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