Use a looser SPF record #509
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Unfortunately, this doesn't play nicely with mailing lists and some receiving mail architectures. See https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/issues/302 for a complete explanation.
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Isn't that really the problem of the list provider? They need to rewrite the headers or wrap the original message. |
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My understanding is that list providers shouldn't do any "munging" of the message if DKIM is set up. The idea is that yes, SPF will fail, and that's fine, because DKIM will still pass, and you only need 1 of SPF or DKIM to pass for DMARC to pass. See https://begriffs.com/posts/2018-09-18-dmarc-mailing-list.html#if-dkim-is-used for details. |
zimbatm
approved these changes
Nov 10, 2024
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Unfortunately, this doesn't play nicely with mailing lists and some receiving mail architectures.
See
https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/issues/302 for a complete explanation.