dovecot - Jul 2014 - Integrity check of mailboxes before dsync

Hi All,

I am migrating a large number of Dovecot mailboxes - some of them are
quite old.? I hit an issue yesterday with a corrupt file (index?)
that was preventing the mailbox from being synced properly? As soon
as I removed the file the dsync worked.? Is there a way to check the
integrity of each mailbox / indexes before I dsync it??? 

Thanks

Murray