[Dovecot] Migrating shared folders from courier-imap to dovecot

Hi,

I'm hoping you'll be able to help. I'm working on a project to migrate our users from a courier-imap (4.3.0) based mail server to a dovecot (2.0.8) mail server.

I have got all the users migrated and working. However, I can't see how to migrate the shared folders from courier-imap. I have tried to find extra information all the migration information seems to centre around a user mailbox rather than shared mailboxes.

Is it simply a case of setting up the shared folders on dovecot, then copying the messages in, finally running the dovecot migration script across them?

Any advice would be greatly appreciated.

Thanks,

Tom