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

Re:Maddy: Composable all-in-one mail server in Go by foxcpp on Sunday November 22, 2020 @10:00AM (#25177918)

There is no IP whitelisting feature in maddy. I believe it is possible to do it using whatever off-the-shelf firewall you have on your system. Could you elaborate on the reasons it is not a viable way for you?

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Re:Maddy: Composable all-in-one mail server in Go by e12e on Sunday November 22, 2020 @10:38AM (#25178264)

If whitelisting is "application level" it's easier to diagnose with an "application (protocol) level" error.

That is rather than a timeout or connection refused, an smtp 550 or 530 error with exlenation (access/relay denied; client ip not in whitelist)?

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