Maddy: Composable all-in-one mail server in Go

Re:Maddy: Composable all-in-one mail server in Go by yokem55 on Saturday November 21, 2020 @10:06PM (#25174603)

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

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Re:Maddy: Composable all-in-one mail server in Go by 7kay on Saturday November 21, 2020 @11:02PM (#25174836)

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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Re:Maddy: Composable all-in-one mail server in Go by krageon on Monday November 23, 2020 @05:27AM (#25185318)

> 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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Re:Maddy: Composable all-in-one mail server in Go by piaste on Sunday November 22, 2020 @01:32AM (#25175452)

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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