>I think it's more likely that DKIM is affecting spammers so little (if at all) >that they never really cared about it, and the organisations deploying it know >that and don't bother doing anything more than going through the motions using >the shortest (= lowest-overhead) keys.
Hmmn. Is there some point to speculating about the behavior of mail systems about which you know nothing? I'm typing this from a conference attended by all of the large ISPs in North America and many from Europe and Asia. I can assure you that they do check DKIM and they do use it to do the things that it can do. Random spam from random addresses is little affected by DKIM; it's hard to imagine why anyone who was familar with it would think otherwise. It's quite useful to recognize mail from known senders, which makes it easier to recognize and deal with some kinds of phishing. As more people use it, it's very useful to bypass filtering for known good signers and decrease the filtering load R's, John _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
