KMail wrong message ordering with order-of-arrival

[Ingo Klöcker]

Hi Kees,

the kdepim-bugs mailing list is not supposed to be used for anything 
else but the automatic bug report notifications generated by Bugzilla. 
(kdepim-bugs-owner: Please clarify/improve the "About kdepim-bugs" 
text.)

Please report bugs via bugs.kde.org.

If you have questions concering the usage of the KDE PIM applications 
(e.g. Kontact, KMail, etc.) then use the kdepim-users mailing list. 
Since you do have such a question I move this discussion to this 
mailing list.

On Sunday 06 January 2008, Kees Bakker wrote:
> Hi,
>
> In my setup (KMail and a dovecot IMAP server) I see incorrect
> ordering of messages when selecting order-of-arrival in the
> Date column.
>
> Can anyone explain what KMail is using to do the ordering? Is
> it perhaps my dovecot server that gives the wrong message date?
>
> I can't see any logic why KMail is placing some messages completely
> out of order. (Not related to arrival date, file date, of date
> header.)
>
> I can supply screenshots to show it, and message contents, and file
> dates.

When sorting by order-of-arrival then KMail does actually sort by the 
internal unique message ID. This message ID is strictly increasing, 
i.e. newer messages have higher message IDs. So this is actually more 
like sorting by order-of-first-seen-by-kmail. Usually it works as 
expected. (I thought in case of IMAP we'd use the IMAP UID, but since I 
cannot find this in the code we probably didn't implement it.)

Does sorting by order-of-arrival work at least for new messages? Do you 
probably use client side filtering?


Regards,
Ingo
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