Re: [dmarc-ietf] nits in draft-ietf-dmarc-aggregate-reporting-02

John Levine <johnl@taugh.com> Fri, 07 May 2021 16:41 UTC

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From: "John Levine" <johnl@taugh.com>
To: dmarc@ietf.org
Cc: Alex_Brotman@comcast.com
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Subject: Re: [dmarc-ietf] nits in draft-ietf-dmarc-aggregate-reporting-02
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It appears that Brotman, Alex <Alex_Brotman@comcast.com> said:
>  2.  I’d welcome other inputs here on the original idea for this option.  I would imagine modern systems would be able to deal with rather
>large XML files, though MTAs routinely set limits under 50M for accepting messages.

I suggested an option to deliver reports by https POST or PUT, like MTA-STS does,
with precious little interest, even though it's a much more efficient way to ship
large files around since it doesn't need base64 encoding and doesn't relay.

This suggests that the size limits are not a problem, at least not one
people think is worth fixing.

>  3.  I don’t think it suggests we should all send at the same time (Unless I’m reading a different section). It suggests that the report
>producer should create reports on the same UTC boundaries.  For example, we do abide by the day boundary, but our reports are generated a few
>hours after 0000UTC (and delivered upon completion).  If you’d like, I can put a clarifying note into the document.

I read it the way he did.  I suppose a comment like "but wait a random number of hours after 0000 before you actually send
the report" would do the trick.

R's,
John