> -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of John R. Levine > Sent: Tuesday, April 05, 2011 12:36 PM > To: Tony Hansen > Cc: IETF DKIM WG > Subject: Re: [ietf-dkim] Proposal: Removal of AUID (i= tag/value) > > As I mentioned to Murray, any mail with d=iecc.com has an i= based on an > authenticated user. Now that you know that, how will you change your mail > handling?
I would associate reputation with "i=" values, because I know they're "stable" from example.com, and filter based on that. A real-world example is gmail.com, which is generally well-behaved but occasionally gets a stand-out crap-sender. If I know their use of "i=" is consistent, then I can assess and associate reputation based on those tags. It's more of a fine-grained assessment than "gmail.com is generally good, so accept their stuff." Now I can say: - give gmail.com unknown "i=" values the benefit of the doubt - give gmail.com "i=" values with bad reputations less room to play - what's left is gmail.com values that seem to be good, so let them through It's the first case, i.e. what to do with unknown "i=" values from a domain I generally trust, that might be useful. _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
