Hi, I've been having massive problems ever since the upgrade to 4.8 (in fact there seems to be a major problem every couple of months). But that is (or was) a different story.

Anyways, as there was no solution in sight and, strictly following Murphy's Law, I was not able to restore backups either, I started a new Akonadi database. However, now I have lost several emails that were tagged as "to do"! I don't think I lost all of them (I found a few older ones), but certainly a majority. It is not that the emails lost their tags, they cannot be found. Apparently, Akonadi had some sinister plans for these emails and had moved them out of my $HOME/.local/share/local-mail directory. Fortunately, I have my old database backed up, so I could restore it somehow. If I knew that the emails are in there. Or would they be in the Nepomuk database since Nepomuk handles the tagging? (I had also started a new Nepomuk database.)

Can anybody help me out? Is there some way to pull an email out of the Akonadi database? Or were else could those mails be?

EDIT: Oh yeah, and then there is the fact that I actually tagged a new message as "to do" (the standard tag) and it disappeared before my eyes! Is there any explanation for that?

Tags are stored into Nepomuk, as you hinted. So that's why you lost them by removing the pre-existing Nepomuk database.

But I am talking about the actual emails, not just the tags. The tagged emails vanished! It's not just that they lost their tags, but rather that I cannot find a majority of my emails anymore that had been tagged previouosly.

Also notice the edit to my first post just a minute ago. I actually tagged a message and it disappeared before my eyes! This akonadi setup should be a default setup. The only thing I had retained from the old database was the akonadiserverrc.

That's a weird bug. Is the message lost or just not visible in KMail?

How can I find out? Is there some way to check this? The only way I can think of, a strigi search of my mail directory, won't work until it has been Indexed, and the indexer is still not finished creating the database.

However, I can tell you that the amount of files in the subfolder of my mail directory equals the number of emails that are in this folder in Kmail.

EDIT: I have tried to reproduce the disappearing of emails by tagging them. I was not able to. I am also able to restore the lost messages from webmail. I might just file a bug report about this at some point and be done with it.

And I had the problem again. After successfully tagging several (5 or so) messages, I had another one that I tried to tag and it got deleted. There was also a notification that said (paraphrase from German): "Local Folders: Changing the tag of the email has failed."

This is a bad bug.

Searching .xsession-errors for something meaningful. I haven't found anything so far. I just don't know what to look for.

EDIT: I see there's already a bug report for it. Good!

There is another bugreport with a clear instruction how to reproduce this error.

Bug 291899 - Kmail deletes mail marked as ham after new start