i think two things are being confused here; what the measurement folk find useful and what the anti-spam folk find useful. the ncc and ripe stat is not supplying the latter. it is the mail operators' choice of which anti-spam techniques to use, and i do that with one hat. but with a different hat i am interested in longitudinal measurement of internet infrastructure, anti-spam services being a small part of it. i suspect that what you really want is (for example) maawg to measure availibility and quality of *all* anti-spam services. while worthwhile, that is not the ripe stat's measurement mission. randy --- randy@psg.com `gpg --locate-external-keys --auto-key-locate wkd randy@psg.com` signatures are back, thanks to dmarc header mangling