I've noticed that some incoming LISTSERV mail is now displaying a list of all the local users who are subscribed to that list in the "To:" field. I noticed it from a directly connected node that is now using version 1.6. I am subscribed with the CONCEAL=YES option. The LISTSERV maintainer indicated that it was a probable bug. I've now seen mail from another LISTSERV that does the same thing although it didn't perform that way in the past. I don't know if they have also upgraded to 1.6. Is this intended behavior or a bug? It seems to make CONCEAL=YES less meaningful than in the past. J.H.