Single mailbox backup

[Jérôme NENERT]

Hi,

I've tried to backup a single mailbox ( user.person ) + its subfolders ( 
user.person.folder1 , ... ).

1) Created the mailboxes with cyradm
2) Stop cyrus, copy my backup /var/spool/cyrus/mail/n/user/person/ to 
the one already existing
3) Reconstruct with reconstruct -rf user.person
4) Start cyrus
When i connect to IMAP, I can only see the Inbox and Trash folders.
What i want to do is to recreate the mailboxes of a person, with just 
the /var/spool/cyrus/mail/n/user/person beeing backed up.
Anyone has precise steps for this ?

Regards.
Jérôme NENERT.