As Steve says the list-unsubscribe header works about as well as what you are suggesting .. if an ISP actually decides they want to implement this across the board and trust any list unsubscribe header that comes their way. Which is not particularly recommended.
You typically contact an ISP out of band to apply for an FBL and whitelisting. And there is some crosschecking done before the FBL is set up. On Wed, May 27, 2009 at 4:06 AM, Franck Martin <[email protected]> wrote: > I'm curious to see if the feedback loop mechanism could be extended using > DKIM. The concept may have many issues, but I want to see if it is a stupid > idea, or if it would have some merit. > > The system would be for the sender to include in the dkim mechanism an > FBL-email: header wich would tell the receiving mail system where to send an > ARF email if the recipient hit the spam button. > _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
