mail queue cannot be flushed

My mail server got hit and ended up with 11000 emails in my postfix mail queue. To speed up the deletion process I logged into my server as root and executed "mailq" to view the queue and then I executed "postsuper -d ALL" to dump all the emails.

Now when I go to view the queue via virtualmin interface and select all the emails in the queue on the page and click "Delete Selected Messages" I am take to the confirmation page, but after I click teh delete button the messages remain in the queue. I used to be able to use this method to delete emails from the queue prior to executing the commands from the command line.

Any idea what might have happened? Did somethign changed with the permissions when I executed the commands as root/ Postfix is still able to place messages in the queue.

This was also a forum discussion. Another user is experiencing the same problem:

Closed (fixed)