SUMMARY Kontact cannot connect to IMAP-Server (posteo.de) to fetch mail or to DAV-Server (fruux.com) to fetch CalDav- or CardDav-Resources. IMAP goes offline in kMail and kontact finishes search for resources without success. STEPS TO REPRODUCE 1. create clean setup for kontact 2. enter credentials and server settings 3. look for new mails / dav-resources OBSERVED RESULT kmail goes offline after a few seconds, kontact finishes without results EXPECTED RESULT collect emails with kmail and add dav-resources to kontact SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 19.10, Kernel 5.6.11-050611-generic KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.67.0 Qt Version: 5.12.4 ADDITIONAL INFORMATION Mail provider states that no recent changes were made to the server. Thunderbird fetches both mails and dav-resources just fine on same OS. ---- akonnadictl output ---- christoph@phoenix:~$ Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) org.kde.pim.akonadiserver: Starting up the Akonadi Server... akonadi.collectionattributetable OK akonadi.collectionmimetyperelation OK akonadi.collectionpimitemrelation OK akonadi.collectiontable OK akonadi.flagtable OK akonadi.mimetypetable OK akonadi.parttable OK akonadi.parttypetable OK akonadi.pimitemflagrelation OK akonadi.pimitemtable OK akonadi.pimitemtagrelation OK akonadi.relationtable OK akonadi.relationtypetable OK akonadi.resourcetable OK akonadi.schemaversiontable OK akonadi.tagattributetable OK akonadi.tagremoteidresourcerelationtable OK akonadi.tagtable OK akonadi.tagtypetable OK org.kde.pim.akonadiserver: Running DB initializer org.kde.pim.akonadiserver: DB initializer done Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c600053f0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c600053f0) identified as "ETMCalendarMonitor - 94608579708192" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60025a50) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60026290) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6002e6f0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6002e6f0) identified as "AgentBaseChangeRecorder - 94913954081216" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60041a90) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60041a90) identified as "AgentBaseChangeRecorder - 94359363051104" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60026290) identified as "AgentBaseChangeRecorder - 93952405507840" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6005c4b0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6005c4b0) identified as "AgentBaseChangeRecorder - 94537611361712" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6006d6a0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60076820) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6007eff0) ) org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60088ac0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6006d6a0) identified as "AgentBaseChangeRecorder - 94061164235776" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60076820) identified as "akonadi_maildispatcher_agent - 94061164229312" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6007eff0) identified as "SpecialCollectionsMonitor - 94061164304352" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009c3a0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60025a50) identified as "AgentBaseChangeRecorder - 94347327243696" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009c3a0) identified as "KNotes Session - 94347327154256" Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009db00) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009cb10) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009d390) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009c900) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6009b180) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009b180) identified as "AgentBaseChangeRecorder - 94615428713952" org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c600f36c0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c601097a0) ) org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c600f36c0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c600f36c0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009c900) identified as "AgentBaseChangeRecorder - 94187515188032" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c600f36c0) identified as "UnifiedMailboxChangeRecorder - 94187515180240" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60107b50) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009db00) identified as "AgentBaseChangeRecorder - 94688076047312" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c601090b0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c601086b0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c601430e0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009cb10) identified as "AgentBaseChangeRecorder - 94229608292560" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60107b50) identified as "MailFilterCollectionMonitor - 94229608704000" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c601430e0) identified as "MailFilterItemMonitor - 140434223534928" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c601097a0) identified as "MailFilter Kernel ETM - 94229608365344" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6009d390) identified as "AgentBaseChangeRecorder - 94853941465760" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c601090b0) identified as "Archive Mail Kernel ETM - 94853941547072" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c601086b0) identified as "ArchiveMailCollectionMonitor - 94853941595648" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60188620) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60188620) identified as "SpecialCollectionsMonitor - 140434156600672" org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6000eb80) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6000eb80) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60187c80) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6016ec30) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6001afd0) ) org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6001afd0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6019a710) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6000e020) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6000eb80) identified as "KMail Kernel ETM - 94500000842768" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60187c80) identified as "SpecialCollectionsMonitor - 94500001259712" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6016ec30) identified as "MessageListTagMonitor - 94500002025472" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6001afd0) identified as "MessageViewerMonitor - 94500001315520" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6001afd0) identified as "MessageViewerMonitor - 94500001315520" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6019a710) identified as "TagActionManagerMonitor - 94500014587504" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6000e020) identified as "FilterManagerTagMonitor - 94500015357872" Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60203320) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60203320) identified as "AgentBaseChangeRecorder - 94667880906160" org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60214040) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c601773d0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60037ad0) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60214040) identified as "CollectionDialogMonitor - 94667883412512" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c601773d0) identified as "CollectionDialogMonitor - 94667883184160" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60037ad0) identified as "SpecialCollectionsMonitor - 94667882046752" org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.akonadiserver: Subscriber "CollectionDialogMonitor - 94667883184160" disconnected org.kde.pim.akonadiserver: Subscriber "CollectionDialogMonitor - 94667883412512" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60214040) ) org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6021d440) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6021d440) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6022e9d0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60214400) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c60238110) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60214040) identified as "TagCacheMonitor - 94500093677168" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6021d440) identified as "ETMCalendarMonitor - 94500095441296" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6022e9d0) identified as "TagCacheMonitor - 94500095713232" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60214400) identified as "ItemMonitorMonitor - 94500096230688" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c60238110) identified as "TagCacheMonitor - 94500096789904" org.kde.pim.akonadiserver.search: Executing search "searchUpdate-1588762077" org.kde.pim.akonadiserver.search: Search "searchUpdate-1588762077" done (without remote search) org.kde.pim.akonadiserver.search: Search update for collection "OpenInvitations" ( 13 ) finished: all results: 0 , removed results: 0 org.kde.pim.akonadiserver.search: Executing search "searchUpdate-1588762077" org.kde.pim.akonadiserver.search: Search "searchUpdate-1588762077" done (without remote search) org.kde.pim.akonadiserver.search: Search update for collection "DeclinedInvitations" ( 14 ) finished: all results: 0 , removed results: 0 org.kde.pim.akonadiserver.search: Executing search "searchUpdate-1588762077" org.kde.pim.akonadiserver.search: Search "searchUpdate-1588762077" done (without remote search) org.kde.pim.akonadiserver.search: Search update for collection "OpenInvitations" ( 13 ) finished: all results: 0 , removed results: 0 org.kde.pim.akonadiserver.search: Executing search "searchUpdate-1588762077" org.kde.pim.akonadiserver.search: Search "searchUpdate-1588762077" done (without remote search) org.kde.pim.akonadiserver.search: Search update for collection "DeclinedInvitations" ( 14 ) finished: all results: 0 , removed results: 0 org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6027e5d0) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6027eb30) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c602870f0) ) org.kde.pim.akonadiserver: Subscriber "" disconnected org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6028ff70) ) org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c6028ff70) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6027e5d0) identified as "ItemMonitorMonitor - 94500100618816" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6027eb30) identified as "ItemMonitorMonitor - 94500100283904" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c602870f0) identified as "kontact-48271 - 94500100481376" org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c6028ff70) identified as "KAddressBook::GlobalContactSession - 94500100499584" org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c602a3160) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c602a3160) identified as "AgentBaseChangeRecorder - 94486043183328" org.kde.pim.akonadiserver: Handler exception when handling command FetchCollections on connection akonadi_davgroupware_resource_0 (0x55895022d4d0) : Hierarchical RID does not specify an existing collection qt.svg: link #rect4138-25-8-1-1 is undefined! org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 QFile::remove: Empty or null file name org.kde.pim.akonadiagentbase: Impossible to remove "/home/christoph/.config/akonadi/agent_config_akonadi_davgroupware_resource_0" org.kde.pim.akonadiserver: Subscriber "AgentBaseChangeRecorder - 94486043183328" disconnected org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_davgroupware_resource' exited normally... org.kde.pim.akonadiserver: New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f7c602a3160) ) org.kde.pim.akonadiserver: Subscriber Akonadi::Server::NotificationSubscriber(0x7f7c602a3160) identified as "AgentBaseChangeRecorder - 94104849326064" org.kde.pim.akonadiserver: Handler exception when handling command FetchCollections on connection akonadi_davgroupware_resource_1 (0x55895022d4d0) : Hierarchical RID does not specify an existing collection org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 org.kde.pim.kimap: Connection to server lost 0 QFile::remove: Empty or null file name