On 5/19/2020 8:46 PM, Scott Kitterman wrote:

Please don't.  This is a large stack of protocol and implementation complexity 
for little or no gain.


Rhetorically, I feel the same about reporting. What is gained from it? But that is just my opinion since the proposed ideas for reporting came and it was mostly rejected with SSP. It's redundant overhead. If reporting is going to be optional feature to possibly implement, it might as well be useful for consumers and that is where the gain will be.

Hector, you realize that for this to work reliably you would need to code up 
support for everything so that you wouldn't have undeliverable reports?


The proposal is more to IANA register the formats (the common ones mostly used in practice) and not to mandate implementers use them all. XML would be the fall back. At a minimum, XML is what publisher (or report handler) will get despite the publisher stating a preferred reporting format, like:

prf=csv, json, xml.

That's asking the verifier, if you can handle a csv or json format, please send us these reports.

I can see where certain 3rd party report handlers would only need XML and they generate readable reports for their DMARC customers. But we can't assume all publishers will be using a 3rd party report handler.

So its about being ready for the future and DMARC not be obsolete fixed with XML only. In my opinion, JSON is the direction most systems are heading too.

Have you implemented the XML format already and you're willing to code up the 
alternatives too?

I can support any format. Easily done with reporting/output templates for CSV, JSON or XML -- single sourced output generator.

This benefits customers, consumers, publishers who will have tools already, today, that imports certain common formats already, and generally, it would begin with a CSV format. Just consider, all spreadsheets apps, Microsoft, Google, etc, all support CSV today, but not JSON or XML. Most or not all, SQL packages, support CSV and probably XML and maybe JSON. Let me double check with Google Docs ...... no. It supports

csv, txt, tab, htm, html, xls, xlsx, xlsm, xlt, xltm, xltx, ods

I don't know if the list will strip attachments, but this link shows an image of the Google Docs popup I got:

https://secure.winserver.com/public/files/google-json-no-support.png

So, from a product design standpoint, for immediate consumer "pay off," at the very least, csv should be the default option, not XML.

--
HLS


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