Ken, Using Internal namespaces and 2.3.3-2 gives following results. If I create "user.jbasile" and NO INBOX, I can deliver an email and it appears at user.jbasile If I then create "user.jbasile.INBOX", I can deliver an email and it appears at user.jbasile, not at the INBOX Mailbox is user.jbasile (\HasChildren) user.jbasile.Draft (\HasNoChildren) user.jbasile.INBOX (\HasNoChildren) user.jbasile.Sent (\HasNoChildren) user.jbasile.Trash (\HasNoChildren) The ACL being set is user.jbasile: jbasile lrswipkxtecda cyrus lrswipkxtecda user.jbasile.Draft: jbasile lrswipkxtecda cyrus lrswipkxtecda user.jbasile.INBOX: jbasile lrswipkxtecda cyrus lrswipkxtecda user.jbasile.Sent: jbasile lrswipkxtecda cyrus lrswipkxtecda user.jbasile.Trash: jbasile lrswipkxtecda cyrus lrswipkxtecda What should happen ? Also, If I want to deliver mail to a submailbox directly, is this possible ? Thanks John ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html