Preview window shows "Inhalt des Ordners wird abgeholt. Bitte warten ..." it take some minutes before the first message is shown in the preview window. When selecting the next message it takes another 5 to 10 minutes to display the message. Reproducible: Always Steps to Reproduce: 1. Start kmail2. 2. Select a folder and a message 3. Wait 5 to 10 minutes until the message is displayed 4. kontact, mysqld and akonadi use ~ 50% and more CPU on a 6 core with 8 GByte system. all the time Actual Results: Only the message list is displayed. Expected Results: * I would expect that a message is displayed immediately after I select a message. * There is no need to read the whole folder. * In 5 Minutes it should be possible to scan all my messages some thousand times. * I would expect that the kontact, mysqld and akonadi only use a reasonable amount of CPU when kontact runs in the background.
This bug has only been reported for versions before 4.14, which have been unsupported for at least two years now. Can anyone tell if this bug still present? If noone confirms this bug for a Framework-based version of kmail2 (version 5.0 or later, as part of KDE Applications 15.12 or later), it gets closed in about three months.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.