If advancing DKIM/ADSP along the standards heirarchy is all that's on the table, I think it should wait.
Effective rollout of DKIM in large hetrgenous organizations is complex and takes time. I think it's better to pause for a while and give broad operational experience more of a chance to exercise what has just been standardized. Scott K _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html