On Thu, 2007-10-25 at 12:31 +0530, Manilal K M wrote:
But one of the users is having some unusual issues with his mailbox. Whenever he clicked and open a new email, it's never marked as read. He has to click and open several times to get it marked as "Read".
I think you should first figure out if this is really a Dovecot problem or something else. You could for example enable rawlog (http://dovecot.org/bugreport.html#sniffing) for that one user and then when this problem happens look at the logs to see if there is a command that updates the \Seen flag.
I don't know how Horde/IMP updates the \Seen flags. It might be a real STORE <uid> +FLAGS \Seen command, or it could use FETCH BODY[] which also sets the flag implicitly.
You could also modify mail-log plugin to log \Seen flag changes. You can do this by replacing MAIL_DELETED with MAIL_SEEN in src/plugins/mail-log/mail-log-plugin.c (and "deleted" / "undeleted" texts also with "seen" / "unseen").