I'm new to Kmail. Using Kubuntu 15.04 and Kmail 4.14.6. I've got a strange problem. When trying to retrieve any messages from my email box using IMAP, the folders get the messages (trash etc) but my inbox is empty. Even when I send more and more mails none go to the inbox. If I delete some mail in my webmail and it goes to trash, then the trash file goes to the trash folder. What could be wrong?

Can you start KMail in a terminal and see if there are errors when you launch a sync (check mail)?

I wrote 'kmail sync' in the terminal and I got:

QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
Hspell: can't open /usr/share/hspell/hebrew.wgz.sizes.
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /home/kone/.config/ibus/bus
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
kone@kone-HP:~$ kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.addin.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12"
kmail2(3265) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slide.macroEnabled.12"
kmail2(3265)/kdepimlibs (mailtransport) MailTransport::SendQueuedAction::itemAccepted: Item doesn't have DispatchModeAttribute.

Let's try to get more output. In a terminal, issue "akonadictl restart", then start up KMail and do a mail check. See if any errors are printed in said terminal.

einar wrote:Let's try to get more output. In a terminal, issue "akonadictl restart", then start up KMail and do a mail check. See if any errors are printed in said terminal.

I get this:

Database "akonadi" opened using driver "QMYSQL"
Database "akonadi" opened using driver "QMYSQL"
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_XfVcwM" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_XfVcwM" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_UNvNvU" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_UNvNvU" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_SMKFNM" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_SMKFNM" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_WQnbAP" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_WQnbAP" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_5WUEXy" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_5WUEXy" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_dl3c2Q" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_dl3c2Q" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_FqSmxS" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_FqSmxS" true false
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV2(const QString&, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_oHWEGy" true
QDBusObjectPath Akonadi::Server::NotificationManager::subscribeV3(const QString&, bool, bool) Akonadi::Server::NotificationManager(0x12232a0) "kmail2_2557_oHWEGy" true false
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.addin.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.addin.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.addin.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"
akonadi_mailfilter_agent(2501) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slide.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12"
akonadi_notes_agent(2506) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slide.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12"
akonadi_archivemail_agent(2489) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slide.macroEnabled.12"

Please launch a mail check afterwards, copy all the output (pretty verbose) to a pastebin service, and post the link here.
If you don't get any results, run "kdebugdialog", uncheck "disable all debug output", and use the search to find "imap" (you'll see stuff like "akonadi_imap_resource") and ensure they're checked. Click OK, then do "akonadictl restart", launch KMail, and check mail.