> -----Original Message----- > From: ietf-dkim-boun...@mipassoc.org [mailto:ietf-dkim- > boun...@mipassoc.org] On Behalf Of John Levine > Sent: Wednesday, June 02, 2010 9:21 AM > To: ietf-dkim@mipassoc.org > Subject: Re: [ietf-dkim] list vs contributor signatures, was Wrong > Discussion >
<snip> > > Here's a thought experiment: let's say you have your list of domains > that are known to be phish targets that sign their mail, so you drop > unsigned mail, and they all happen to publish ADSP. Someone's ADSP > record goes away. Is it more likely that they've stopped signing > their mail, or that their ADSP record is temporarily messed up? Why? > Signing their mail does not equal ADSP. "Knowing" they sign their mail does not equal ADSP. As you have pointed out, ADSP does not equal manual drop lists. The fact that someone's ADSP record - absent any other data points - goes away, tells us nothing other than their ADSP record went away. There could be any number of reasons as to why it went away. Are we now going to have to write a draft for casting goat bones to determine the meaning of standards implementations and operational practices? It's really quite simple. If there is no longer an ADSP record then ADSP is not applicable. Doesn't matter whether they are still signing or not signing. If a domains DNS records returned an NXDOMAIN on a lookup would you insist on doing something other than saying the domain doesn't exist? Mike _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
