Alain Reguera wrote:
/var/spool/imap/ 2.000 # This could be as a Cyrus Swap, moreover of System Swap? /var/spool/mail/ 14.000
Nope, you got that part wrong. Remove /var/spool/mail completely. Cyrus does not use it at all (it's going to be empty). Alocate those 14 gigs to /var/spool/imap file system (it's not a swap space, it is file system where the mailboxes will be stored).