IMAP & KMail/Akonadi: Unavailable folders

[Jörg Schaible]

On Wednesday, 30th October 2024, 14:33:42 CET mh at mike.franken.de wrote:
> On Tuesday, 29th October 2024 21:24:21 SET Jörg Schaible wrote:
> > Hi,
> > 
> > now after 2 decades using KMail, I am on the verge of giving up.
> > 
> > I am currently using KMail and Akonadi 24.08.1 and I face the problem,
> > that not all folders from my IMAP account are available in KMail.
> > Only when I delete the account in KMail and recreate it, all folders
> > are available for some time, but latest after two days, a lot of them
> > are no longer present.
> > 
> > Anything is there when I look into the folder structure for the
> > server-side subscription, every single folder. However, opening the
> > local subscriptions dialog, a lot of folders are missing, especially
> > the deeper nested ones.
> > 
> > When I start akonadiconsole I can see in the browser tab the complete
> > folder structure, but all folders that are no longer available in
> > KMail's local subscription are grayed out for unknown reason.
> > Comparing the folder properties for the proper and dysfunctional ones
> > reveals nothing special, the properties for the grayed out folders
> > seem all OK.
> > 
> > I have no idea, what causes the problem, nor how to solve it. The
> > server uses Courier and I am using the MySQL backend with an external
> > DB, but an attempt to switch to Sqlite with akonadi-db-migration runs
> > simply into a segfault when the new DB is about to be initialized.
> > 
> > So, currently KMail is for me no longer usable after all those years
> > (with a lot of downs and only a view ups) and this is really
> > embarrassing. And again I am missing rock solid KMail 3...
> 
> Maybe akonadictl fsck / vacuum will improve the situation?

No, not at all. That was actually the first thing I tried.

Regards,
Jörg