On Jun 28, 2011, at 3:10 PM, Hilda Fontana wrote:

> This is the first draft of the split out document for the ARF reporting.  
> Please review and let me know how best to improve it.

If Delivery-Result: is required, then I expect we'll see a lot (perhaps a 
majority) of implementations being intentionally non-standard and omitting it 
anyway.  Mailbox providers tend to be /very/ touchy about who they'll share 
exact delivery results with, and for good reason: the bad guys have lots of 
incentives to try to trick their way into delivery feedback results that they 
can use to tune their spamming systems.

I'd urge making that an optional field, or possibly include a null/refused 
value.

--
J.D. Falk
the leading purveyor of industry counter-rhetoric solutions

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