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  • Exclude Email Address or Sub-Domain from DMARC Checks

    From Computer Nerd Kev@21:1/5 to All on Thu Jan 2 12:20:58 2025
    I'm starting to wonder if DMARC failures due to mailing lists
    forwarding my messages to them and breaking DKIM/SPF in the process
    _might_ be harming my mail server's reputation*.

    Can the specific email accounts which I've subscribed to mailing
    lists be excluded somehow from DMARC checks or DKIM and SPF? Or a
    different sub-domain pointing to the same server which I can use
    in email addresses subscribed to mailing lists?

    Or do I have to use a different domain entirely for those addresses
    in order to bypass DMARC on the current domain? So far it looks
    like this is the case, but I thought I'd check in case I missed
    something.

    * I know this is backwards to how it's meant to work and probably
    wrong, but there's some correlation and it would be good to
    eliminate the possibility. Plus it would clean up the DMARC
    reports I receive.

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  • From Marco Moock@21:1/5 to All on Thu Jan 2 19:04:39 2025
    On 02.01.2025 12:20 Uhr Computer Nerd Kev wrote:

    I'm starting to wonder if DMARC failures due to mailing lists
    forwarding my messages to them and breaking DKIM/SPF in the process
    _might_ be harming my mail server's reputation*.

    That doesn't make sense because if so anybody could just destroy your reputation. Although, it might worse the reputation of the mailing list
    server.

    Can the specific email accounts which I've subscribed to mailing
    lists be excluded somehow from DMARC checks or DKIM and SPF? Or a
    different sub-domain pointing to the same server which I can use
    in email addresses subscribed to mailing lists?

    I don't know of such a possibility. DKIM/DMARC/SPF are per-domain.

    --
    kind regards
    Marco

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