Re: [Asrg] DNSBL BCP DRAFT 02 UPDATE on the IETF web site

["Chris Lewis" <clewis at nortel.com>]

J D Falk wrote:
> Al Iverson wrote:
> 
>> Re, this bit:
>>    Inevitably, some of these listings may impact non-abusive email.
> This
>>    has, perhaps inevitably, resulted in some labelling such practises
> by
>>    the emotionally loaded term "collateral damage".  In this context
> it
>>    has to be remembered that no filtering technique is perfect, and
> that
>>    occasional mistake is inevitable no matter what is used, DNSBLs or
>>    otherwise.
> 
> Suggested new language:
> 
> Inevitably, some of these listings may impact non-abusive messages --
> or, in the case of a DNSWL, may permit unwanted messages.  For some
> lists, such impact is both intentional and desired.  Either way, this
> has resulted in some people labelling such practises by the emotionally
> loaded term "collateral damage".  It is entirely incumbent upon the user
> of a DNSBL (or any other filtering technique) to find the appropriate
> balance of potential risk and potential benefit for their own
> environment.
> 
> (This last paragraph repeats things said elsewhere in the document
> already, but it may be worth repeating.)

My intent for the "mistake" sentence was an aside to contextualize 
"innocent bystander effect" ("collateral damage") with ordinary FPs in 
any technique - tho I can see how it can conflate into the CD bit.  A 
late addition on the rewrite.  I could simply leave it out and sidestep 
the concern.  But I think JD's language is better, and perhaps says much 
of what I wanted the "mistake" sentence to mean.

I haven't said "escalation" (either the SPEWS or the SBL variant) to 
apply pressure on providers.  Do I need to?  I don't think so - I think 
we reinforce the "right to list, right to decide to use any list" 
sufficiently, and explicitly mentioned collateral damage, so it's not 
necessary.

I think Andrew's proposed rewrite introduces more detail than necessary, 
tho it does use the term escalation.  Broad listings aren't always 
escalation.

I haven't said anything about "mistaken/accidental" listings.  I could 
just put a sentence into the "Removals must be prompt" section.   Thoughts?
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