I need to migrate a cyrus-imap setup from an older server running version 2.2.12 to a new server running 2.3.8. I've dug through the Cyrus wiki, the install-upgrade.html file, and other resources but I'm still running into a bit of a problem. I copied the entire /var/spool/imap directory over to the new server then tried running the reconstruct script. It re-created all the mailboxes, and I can see them properly in cyradm, but when I connect with Thunderbird only the top-level mailboxes show up. The child mailboxes don't appear, and all the users mail has been dumped into the top level inbox. What's the right way to migrate all the mail & settings, preserving the tree structure of each mailbox?
Thanks,
-Bruce
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