Hello,
Since about a week ago all incoming messages on one of my accounts marked as read will revert to being unread. If I delete them they'll come back again with the original dates they were sent. All of this happens with a mail client using IMAP & with the web interface after closing down the mail client. I won't be able to upgrade Roundcube since otherwise I'll have to upgrade to PHP 5.3.x which would mean that I have to change an otherwise well-running CMS.
Any thoughts?