dovecot - May 2012 - mdbox corruption

I have isolated the corruption in a mailbox to 4 mdbox files.  Two of 
these (smaller) files cause the force-resync to report a breakage and 
save the file as m.XX.broken.  The other two (larger) files cause a crash.

Is there a way I can fix these files and recover the mails?
-- 
Daniel

On 2.5.2012, at 20.27, Daniel L. Miller wrote:
> I have isolated the corruption in a mailbox to 4 mdbox files.  Two of these
(smaller) files cause the force-resync to report a breakage and save the file as
m.XX.broken.  The other two (larger) files cause a crash.
> 
> Is there a way I can fix these files and recover the mails?
Well, you do have the option of extracting the mails with a text editor until I
get around to fixing the crash.