[Dovecot] qpopper UIDLs and migrating to dovecot/maildir

hi all,

I am hoping to convert a 350K user qpopper installation using mbox to dovecot and maildir (pop3 only).

many of the users "leave mail on server", and qpopper's UIDL format isn't (yet) supported by dovecot. since the UIDLs have been written by qpoppper to the existing mbox files (and will be preserved when the mboxes are converted to maildir) it would be possible to do this seamlessly if dovecot could read the UIDLs from the messages and populate the index files as needed.

is anything like this already possible? it doesn't matter what UIDLs new messages get, since they would never have been downloaded by the user via qpopper.

any ideas would be appreciated.

grant.