Well, i gave you a detailed instruction of how to fix your issue .. but you haven't managed to get it to work .. so again .. i'm willing to help you, but you have to give me xs to your system, if i have to explain everything in even more detail, this is going to take a lot of time, and i've got other things to do as well .. so send me some login data in a private message, and i'll have a look for you.
When you replicate or you move a folder with cp or mv command, lose all owners hidden files (.mailfilter for example). I have replicated the folder with the command cp-r-p vmail /{[!.],.[!.],..?}* vmail_old / and all work fine. In alternative use rsync -a folder1 folder2