failed to store into mailbox 'INBOX/Junk': Permission denied

[Davide Marchi]

For more clarity I also attach the content of 
"/etc/dovecot/conf.d/15-mailboxes.conf"


#  mailbox Junk {
#    special_use = \Junk
#  }
#  mailbox Trash {
#    special_use = \Trash
#  }
   mailbox INBOX/Junk {
   auto = subscribe
   special_use = \Junk
   }
   mailbox INBOX/Trash {
   auto = subscribe
   special_use = \Trash
   }


Thanks again