SUMMARY I'm using Kontact to check my email messages. Most often something gets stuck, in the message pane I just see "Retrieving Folder Contents / Please wait...", but nothing happens no matter how long I wait. Selecting a message doesn't change anything, only the same screen is redisplayed. Akonadi Console shows all agents are "Ready". This is not a server issue as Thunderbird works as expected with the same account. STEPS TO REPRODUCE 1. Start Kontact 2. Setup an e-mail account 3. Check your messages OBSERVED RESULT Message pane displays a "please wait" message, but nothing happens even after selecting another message. EXPECTED RESULT Message list downloaded and messages displayed on click. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Linux (x86_64) release 5.6.0-1028-oem KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 ADDITIONAL INFORMATION This has been a bug in KMail for 4-5 years now. I have developer experience and would be happy to assist hunting this annoying bug if someone tells me what to check.