Re: [dmarc-ietf] tree walk and Org and PSD, Second WGLC for draft-ietf-dmarc-psd
John Levine <johnl@taugh.com> Tue, 24 November 2020 17:07 UTC
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Date: Tue, 24 Nov 2020 12:06:21 -0500
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From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
Cc: vesely@tana.it
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/PaVmgPQLaGWsrb4iclP5QDLt4Qc>
Subject: Re: [dmarc-ietf] tree walk and Org and PSD, Second WGLC for draft-ietf-dmarc-psd
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In article <a471cfd8-e651-a275-9db7-f88728ff90aa@tana.it> you write: >On Tue 24/Nov/2020 13:52:43 +0100 Brotman, Alex wrote: >> I had one spam message that had 13 parts. It included both "_mta-sts" and "mta-sts" in there, as well as >"mail" nine times. The last two parts were the org domain. > >If the message happened to authenticate, negative reputation is better added to >that org domain rather than to .com or to some random mta-sts.mail.something. Why would you think that spam was sent by the actual holder of that org domain? Since the address contained an underscore, it's invalid anyway so you could probably reject the message without a lot of extra checks. >IOW, if we need the OD anyway for alignment, there's no point in discovery >DMARC records by tree walk. My plan is that whatever you discover by the tree walk replaces the OD. In the likely common case that the tree walk ends at _dmarc.<orgdomain> you get the same result either way. R's, John
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Doug Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Chudow, Eric B CIV NSA DSAW (USA)
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… John Levine
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Tim Wicinski
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Chudow, Eric B CIV NSA DSAW (USA)
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Doug Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Kurt Andersen (b)
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Douglas E. Foster
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… John Levine
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Murray S. Kucherawy
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Laura Atkins
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Douglas E. Foster
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Chudow, Eric B CIV NSA DSAW (USA)
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Jesse Thompson
- Re: [dmarc-ietf] Second WGLC for draft-ietf-dmarc… Doug Foster
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… John Levine
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Brotman, Alex
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… Alessandro Vesely
- Re: [dmarc-ietf] tree walk and Org and PSD, Secon… John Levine