GNU bug report logs - #20004
25.0.50; nnimap should update unread counts from server

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eric Abrahamsen <eric <at> ericabrahamsen.net>
Cc: 20004 <at> debbugs.gnu.org
Subject: bug#20004: 25.0.50; nnimap should update unread counts from server
Date: Wed, 25 Jan 2017 22:33:13 +0100

Eric Abrahamsen <eric <at> ericabrahamsen.net> writes:

> At some point in the Gnus usage cycle, nnimap servers should be updating
> their read marks (and possibly other marks) from the IMAP server flags.
> Right now, Gnus relies on its own read/unread marks, and will not query
> the server for group flags unless you manually delete the "active"
> parameter for a group, and force it to re-scan the group.

If you're talking to a modern IMAP server, then Gnus will issue QRESYNC
commands to the server and will get all new events that have happened.
This includes read/unread marks and all the rest.

If the server doesn't support that, there's not much that Gnus can do
without agressively re-requesting all the data on the server, and that's
going to be s-l-o-w.  So I don't think this is a bug.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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