[Dovecot] dsync, separator, but really - Default Namespace

Just made the leap from 1.2 to 2.0.6 - and several maddening config typos I think I have a working system again! Getting closer to converting from maildir to mdbox, but first...

Trying to use dsync gives me: dsync(root): Fatal: Mail locations must use the same virtual mailbox hierarchy separator (specify separator for the default namespace)

Ok - I 've never configured namespaces before...time to learn. So my first attempt - is the following config the same as having no explicit namespace declaration?:

# My Default Namespace namespace { type = private separator = '.' prefix =. location = /var/mail/%d/%n/Maildir inbox = yes hidden = no list = yes subscriptions = yes }

-- Daniel