Originally Posted by j-ray
chmod -R 0777 /var/qmail
(not very safe but will probably do the trick?)
No, no, no!
qmail is structure such that, instead of a single task to handle emails, it is split into many small task. One handle injecting, one handle local email, one handle remote email and so on. So, User permission is very important, since each task will run in its own user level. Creating an incorrect ownership file may lead to even more problem.