Bug 383807 - Doubled mail after filtering
Summary: Doubled mail after filtering
Status: REPORTED
Alias: None
Product: kmail2
Classification: Applications
Component: message list (show other bugs)
Version: 5.5.2
Platform: OpenSUSE Linux
: NOR normal with 20 votes (vote)
Target Milestone: ---
Assignee: kdepim bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-08-21 16:42 UTC by Sven Heithecker
Modified: 2018-03-21 13:59 UTC (History)
3 users (show)

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Description Sven Heithecker 2017-08-21 16:42:56 UTC
I have several mail filters active, which move mail upon reception from the incoming to different local folders. Sometimes, filtered/moved mails appear twice in the destination folders, and sometimes I cannot delete the doubled mails.
There are no double mails in the incoming folder, it only happens after filtering.
Maybe of importance: for some reasons, I (still) use pop3 to fetch the mails from the server.
Comment 1 Sven Heithecker 2017-08-21 17:46:26 UTC
Generally, the doubled mails fail to display with the message "Unable to fetch item from backend (collection -1): Unable to retrieve item from resource: Multiple merge candidates, aborting." This can be "fixed" by clearing the caches using the Akonadi console.
This behavior appears only with one of the recent KMail versions, maybe not before 5.5.2, however I am not totally sure.
Comment 2 Eugen Albiker 2017-10-09 20:41:44 UTC
Hi,
same problem here.

KMail 5.5.3
KDE Frameworks 5.38.0
Qt 5.9.1 (kompiliert gegen 5.9.1)

It happens only with filtered mail - sometimes....
Fix is: clearing caches by using he Akonadi Console

Greetings
Eugen
Comment 3 DeMus 2018-03-21 13:59:13 UTC
I also have the same problem: moved mails sometimes appear 2-3 times in the destination folder and still a copy remains in the inbox.
Other times mails are not moved at all, at least not automatically. Doing so by hand moves them to the correct folder.
I use:
Kontact 5.7.3
KDE Frameworks 5.44.0
Qt 5.10.1 (built against 5.10.1)
The xcb windowing system
on Manjaro Linux 17.1.6