I've been noticing this, too. About six of them in the last three months, out of 200 messages. I'm not certain what LISTSERV filters on, but I've also noticed that my own filtration system has started missing them (filtering on every combination of "out of /the/ office" I can think of). LISTSERV 1.8e, here, has been bouncing most of them to the -request address, Is there a way to tweak LISTSERV's filtering (if I can figure out what it's missing)? -- Russ St. Thomas University http://www.StThomasU.ca/~hunt/