The parts with the supposedly unread emails is now solved. Here is what happened:
- I created public folders with per-user seen flags, granted delete permission but forgot to add expunge rights to the users. - Email clients were configured to delete mails (including expunge) or move mails to trash folders instead of just marking them as deleted. For Thunderbird, this means that mails that are marked as deleted are not shown. - Now when some clients deleted mails in public folders, the mails were only marked as deleted. This was not a problem for the user who deleted the mail, because for him the message was both read and deleted. However, other users of the same public mailbox had individual seen flags, and for them the mails were both UNSEEN and DELETED. - The default setting in Thunderbird retrieves a list of folders from the mail server which includes the number of unseen mails per folder. This number is displayed initially, but as soon as the user clicks on the folder, messages that are deleted are not counted as unseen and the unseen message indicator disappears. Important: The errors reported in the initial bug report still occur (corrupted index.cache files). Sorry for misleading you with this configuration error, but it took me a long time to figure this out... Regards Thomas -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
