your subject says 9vx and email, but your message didn't mention 9vx. assuming you are actually using 9vx, it's important to note that the mail system depends heavily on lock files, and the #Z file system in 9vx, which is what gives you access to the host file system, does not support lock files. you'll only get the right behavior if you're using a native plan 9 file system like fossil or kfs or a network connection to one of those to hold the /mail/queue directory tree.
russ
