>>>>> "Brad" == Brad Knowles >>>>> "Re: [Mailman-Users] spam, spamcop and mailman moderation" >>>>> Sat, 11 Nov 2006 19:56:36 -0600
Brad> At 11:17 AM -0500 11/11/06, John A. Martin wrote:
>> Perhaps amend Charles' suggestion to also provide a response
>> when a specified regular expression is found in the message
>> header.
Brad> On first blush, it's hard to see how this would be useful.
In the particular example given one could enforce a policy of
responding only to messages with SPF pass and thereby seen to be
unlikely to create backscatter to falsified envelope sender addresses.
Presumably there may be other header fields used by other schemes with
similar effects.
>> Please consider this amendment to Charles' suggestion without
>> arguing the merits of SPF here. This is only one example of
>> using a header field to augment Charles' original suggestion.
Brad> Umm, yeah. I think you know me well enough to know what my
Brad> views on SPF are, but on the other hand this does
Brad> demonstrate the utility of the feature you're asking for.
Brad> I wouldn't have used SPF as the example here, but I take
Brad> your point.
The SPF example was one I did not need to search for or to contrive
because I see many examples that comply with RFC4408 Section 7 and
thereby comply with the ordering requirements of RFC2821 Section 4.4
_et al_ making it relatively easy to determine whether it is
reasonable to act upon the data in a particular header field. I
suspect you would agree that otherwise action should not be
recommended to be taken based upon the data contained in header
fields.
jam
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