On Aug 4, 2010, at 9:51 AM, John Levine wrote:
I'd like to back up a minute and try to understand better what (if any)
problem we're trying to solve here. So here is a straw poll.
Assuming you do any sorting of inbound mail at all, how do you treat
mail from lists to which you have subscribed?
A) Use the From: address (or something that identifies the contributor)
as the primary sort criterion
B) Use the List-ID: (or something that identifies the list) as the
primiary sort criterion
C) Something else
It is my impression that everyone does B, but maybe I'm wrong.
C).
List-ID is a great thing to sort on, but I also sort (and, more to the
point, filter) based on From address both before and after looking
at the List-ID.
So the sorting criteria is From address, followed by List-ID,
followed by From address.
I can sort with perfectly acceptable accuracy on all these things
without any sort of authentication needed. If the MLM were to DKIM
sign the List-ID: and From: fields that would be nice, but it's not
essential.
Cheers,
Steve
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