Here is the result "ls -l" on one my regular users.
-rw------- 1 vmail vmail 21 2008-01-25 20:43
One thing I caught in you first response:
"Deleted the file to let postfix re-create it (after sending myself a test). It did not."
Sorry if I did not explain it clearly, but you need to delete the maildirsize file before sending the test e-mail. Then after the e-mail arrives, check to see if Postfix re-created the maildirsize file.
If we can get Postfix to create the file, then it should update when mail arrives to / removed from the server.
The problem I had was Postfix failed to create the file at all, which seems to be the same problem you are having.
Last edited by thecaoticone; 26th January 2008 at 06:57.