I have recently discovered that my cemail.vol file went crazy: the outlook folders became misaligned.
Without much details of WHAT happened, I needed to delete cemail.vol.
It is not a simple thing since the file is constantly locked by some process (no idea which - I tried killing most of them via MemMaid to no success).
Anyway, to cut the long story short, one way to do it is to use...
Mortscript (what else!)
Create a simple script:
Place a shortcut to this script to a \Windows\Startup folder and reset: you will have a brand new cemail.vol file when everything boots up (at least I did).
Don't forget to delete the shortcut, or you'll have a brand new cemail.vol every time you boot.
Hope this helps!