[Dovecot] UID order vs date order

[Torbjorn Jansson]

Hi

i have recently moved a mailbox to dovecot and intend to use it via imap 
and i have run into a problem.

when i imported the mails apparently the UID order got reversed compared 
to the date order, result is that some clients like on android devices 
download the oldest mails instead of newest.
it is not so interesting to have several years old mail show up at the 
top of the mailbox.

is there any way of convincing dovecot to renumber the mails by date 
order instead?
i have tried  to delete the dovecot-uidlist and dovecont.index* files in 
an unimportant folder and the only thing that happens was that all of 
the mails got renumbered in the wrong order again (lower numbers but 
still same problem)

any advice?
i cant be the only one that have run into this.