> Specifically, all mail sent to namedroppers is: > > 1) first run through spamassassin. Mail that is rejected here is not > archived, as the number of such messages is large. All mail sent to > mailing lists on the server hosting namedroppers is run though > spamassassin, so this is not a namedroppers-specific procedure. SpamAssissin needs to be shot. Most of its criteria are really poorly chosen. Even if its criteria are good at identifying spam on a large scale (with few false positives) that doesn't mean they will work well for a narrowly-focused discussion. In my experience SpamAssassin has too high a false positive rate to be trusted without human review as a backup. Keith p.s. regarding messages that did not make it to the namedroppers archive - are the IETF archives still using to/cc message headers to decide which archive a message should be stored in? if so, is it possible that a message which was sent to multiple lists might be archived in only one of those lists?