Re: (fake) unread messages using nnimap.

[Daniel Pittman <daniel@rimspace.net>]

Uwe Brauer <oub@mat.ucm.es> writes:

> I wrote about this some time ago but never saw my mail posted.  Just in case
> again: I am using Xemacs 21.4.22 Mule, nognus 0.11 and the nnimap backend
> for reading my mail.  My mail I receive using offlineimap and running the
> dovecot server on my Laptop. That is why I don't use the agent any more.
>
> However in every session gnus indicates in several nnimap groups unread
> message, where in fact there are not. When visiting the group *no* unread
> messages are shown and after leaving that group in fact the indication of
> the unread messages disappears.
>
> Does anybody know about this problem and what to do?

It could be any number of things, but one of the common issues with
offlineimap that I have is:

When you add a new message to a group on the "client" side of an IMAP <=> IMAP
sync pair, offlineimap will upload it to the server, delete it from the
client, then add a new copy with an extra header.

Flags are preserved, though, so the message will show an a "new" item, but
already be read when Gnus looks at it.  This would show in any folder where
you added messages with IMAP on the client side.

offlineimap with a mutable client side (eg: Maildir) doesn't show this problem
because it doesn't need to delete and add a message to add the extra header.

Regards,
        Daniel
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