[Dovecot] outlook 2007 mailbox sort order

What are people doing to affect the sort order of mailboxes in outlook? Apple Mail and MS Outlook similarly suck in that they do not sort '~' correctly -- mailboxes starting with '~' are first instead of last. At least I think this is the fault of the client, since Mulberry sorts correctly.

At least with Apple Mail I can drag and drop mailboxes into any display order I like, so at least after the fact it can be "corrected".

I want to provide shared, virtual and lazy_expunge mailboxes. I'd like these to be last in the list of mailboxes. This doesn't seem possible with Outlook unless I prefix the names with 'zz' or similar. yuk.

-frank