Dovecot local.conf

Permissions for stats-writer / stats-reader

mail:/usr/local/etc/dovecot # cat local.conf
service stats {
    unix_listener stats-reader {
    user = vmail
    group = vmail
    mode = 0660
    }

    unix_listener stats-writer {
    user = vmail
    group = vmail
    mode = 0660
    }
}