# cyradm --user root localhost
    localhost> lm
    user/harold (HasChildren)
    user/harold/Drafts (HasNoChildren)
    user/harold/Junk E-mail (HasNoChildren)
    user/harold/NotSpam (HasNoChildren)
    user/harold/SPAM (HasNoChildren)
    user/harold/Sent (HasNoChildren)
    user/harold/Sent Items (HasNoChildren)
    user/harold/Trash (HasNoChildren)
    localhost> sam user/harold root all
    localhost>  dm 'user/harold/Junk E-mail'
    deletemailbox: Permission denied

    # cyradm --user harold localhost
    localhost> lm
    INBOX (HasChildren)               INBOX/Sent (HasNoChildren)
    INBOX/Drafts (HasNoChildren)      INBOX/Sent Items (HasNoChildren)
    INBOX/NotSpam (HasNoChildren)     INBOX/Trash (HasNoChildren)
    INBOX/SPAM (HasNoChildren)
    localhost> dm 'Junk E-mail'
    deletemailbox: Mailbox does not exist
    localhost> dm 'INBOX/Junk E-mail'
    deletemailbox: Permission denied