Re: [dmarc-ietf] Consensus Sought - Ticket #53 (Remove reporting message size chunking) - With Interim Notes

[Todd Herr <[e-mail]>]

I have closed the subject ticket and incorporated relevant text
changes in draft-ietf-dmarc-dmarcbis-02,
which will be published on Datatracker as soon as the chairs have a chance
to do so.

On Tue, Jun 8, 2021 at 4:32 AM Alessandro Vesely <[e-mail]> wrote:

> Thank you Steve, this confirms size limits are a useless encumbrance on
> reporting.
>
> Best
> Ale
>
>
> On Tue 08/Jun/2021 01:20:55 +0200 Steven M Jones wrote:
> > On 5/31/21 15:49, Steven M Jones wrote:
> >> I think we can get the input needed to resolve this by Todd's requested
> >> deadline, and be able to show we did the due diligence to back up the
> >> decision.
> >
> >
> > I got three responses - unfortunately I discovered I don't have as many
> > of these contacts as I used to. So it's still anecdotal, but it includes
> > two of the (I don't know) dozen top mailbox providers in the world - for
> > whatever positive or negative weighting that may carry with you.
> >
> > I'm about to add the following comment to the TRAC ticket:
> >
> >
> >
> > I offered to try and get information on the frequency of use of this
> > feature from mailbox providers/report generators. I received three
> > responses, which I will rephrase to protect the sources. They can speak
> > up if they wish to go on the record.
> >
> > 1. Global mailbox provider A: Our code doesn't handle the syntax, and
> > will try to send to the address including the size specification. So if
> > you use that in your domain's RUA tag, our reports to you are probably
> > bouncing. There's a bug filed to fix it, but no commitment to do so.
> >
> > 2. Global mailbox provider B: We had the same bug, but fixed it - so
> > reports will be sent to the correct address. But regarding the limit, we
> > checked to see if anybody who specified a limit was receiving reports
> > large enough to trigger it, and nobody was. Large operators who might
> > actually trigger it, didn't specify a size. So we never implemented it.
> >
> > 3. National mailbox provider: I wrote code to implement it, but to my
> > knowledge it has never been triggered. Maybe our operation isn't big
> > enough. But implementing it was painful - guessing what the compressed
> > size would be, how to trim or truncate the report to fit the limit, who
> > to notify in the event of truncation and how... I would prefer removal,
> > but failing that please simplify it. [I can share the suggestions if we
> > go that way. --S.]
> >
> >
> >
> > --Steve.
> >
> >
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> > https://www.ietf.org/mailman/listinfo/dmarc
> >
>
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>


-- 

*Todd Herr* | Technical Director, Standards and Ecosystem
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