qmail: queue wrong owner # 4.3.5 error

this is a problem with qmail's directory/file structure

to fix:
1. download and run queue-repair to fix the queue
    http://pyropus.ca/software/queue-repair/
2. make sure qmail-queue is owned by qmailq
    # chown -Rf qmailq qmail-queue
3. set qmail-queue's user id bit (to run qmail-queue as qmailq user)
    # chmod u+s qmail-queue

don't go playing with your qmail files if you don't know what you're doing. i think that's how i got in trouble. lol