[Dovecot] Moving old files

[Jon]

Hi,

I wish to automatically remove mail files not accessed for some time. I 
have done this in the file system and it works fine although it is a bit 
slow when the mail client access the mailbox after changes.

Are there any way of having dovecot moving the files so that index and 
subscriptions are kept more same? Can one use Dovecot from the command line?

Best Regards - Jon