[Dovecot] Want to have some users with Maildir, some with mbox

[WJCarpenter]

>>> BTW. Are you also using a script that preserves IMAP UIDs? Otherwise IMAP clients will re-download all the mail.
>>>        
>> Does the "convert" plugin preserve the UIDs?  The wiki implies that it doesn't, but I thought maybe since it's implemented as a plugin that maybe it does (or that maybe the caution is about converting to/from dovecot and some other server).
>>      
> It doesn't. In v2.0 dsync does. In v2.0 convert plugin has been removed.


So, what is the answer for pre-2.0 folks who want to do mbox->Maildir 
conversion?  I have not yet found a script that claims to preserve 
UIDs.  Is there one that people use?