[Dovecot] Migration to mdbox from Maildir, missing folders!

[Timo Sirainen]

On 10.2.2012, at 16.36, Giles Coochey wrote:

> So I went and migrated a mailbox from mdbox from maildir format.
> All seemed ok, but I've found that I now have some missing folders.
> 
> The mailbox in maildir format had some folders which contained an '&' sign, these appear to have been omitted...

What Dovecot version? And give some specifics, like outputs of:

ls -a ~/Maildir/
ls ~/mdbox/mailboxes/

or something similar.