>effect" that went on. It was a wide-ranging, open discussion of >tradeoffs. After the third iteration, however, the participants maybe >got a bit tired or restating them. Yeah. That's why I put it all in this wiki: http://wiki.asrg.sp.am/wiki/Mitigating_DMARC_damage_to_third_party_mail (Just updated the ARC part to point to the current drafts. Other updates always welcome.) I've found that if you haven't spent a great deal of time thinking about the details of e-mail, there are usually subtle but important issues you don't understand. And even if you *have* spent a great deal of time, there still can be subtle but important stuff you miss. R's, John