[Dovecot] Deleting a folder with & character

Hello,

One of my users has a mailbox named 'INBOX.Kron & SPM' (maybe created a 

long time ago, when we use courier imap as pop/imap server, but I'm not sure).

I can see the maildir with a doveadm list command:

amateo_adm@myotis31:~$ sudo doveadm mailbox list -u <user> ... INBOX.Kron & SPM ...

but I can't delete it, neithe rename it:

amateo_adm@myotis31:~$ sudo doveadm mailbox delete -u <user> 'INBOX.Kron & SPM' doveadm(jrfv): Error: Can't delete mailbox INBOX.Kron & SPM: Mailbox doesn't exist: INBOX.Kron &- SPM amateo_adm@myotis31:~$ sudo doveadm mailbox delete -u <user> 'INBOX.Kron \& SPM' doveadm(jrfv): Error: Can't delete mailbox INBOX.Kron \& SPM: Mailbox doesn't exist: INBOX.Kron \&- SPM

is there any way to delete it with doveadm command? should I use a 

specific syntax or escape to indicate the name?