On 1.2.2012, at 1.16, Armistead, Kurt wrote: > Recently we've moved our old (and I mean _really_ old) mailserver to a new > hardware. Since I had quite some time on my hands, I decided to switch > from courier to dovecot. Transition went pretty smoothly and the users > experienced just a few hours' blackout. > > Only trouble now is that, after re-configuring some IOS handsets and > tablets, not all messages are displayed correctly.
Did you use the courier-dovecot-migrate.pl script? If not, Dovecot set new IMAP UIDVALIDITY and UID numbers to mails and the problems are most likely related to clients not realizing that they should drop their internal caches.
