Tried to delete 'Local Folders', after that new Local Folders were automatically created - this time in my own language. After that, any e-mail I tried to send was only staying in local outbox folder. Manual sending didn't work too. Reproducible: Always Steps to Reproduce: 1. Setup an e-mail account in KMail. 2. Change KDE language. 3. Open KMail and delete Local Folders. New ones will be created in the new language. 4. Try to send e-mail. Actual Results: Does not send e-mail. Expected Results: Sends email.
It's a bad idea to delete it to recreate And you need now to fix your identity. And for local folder language it's already fixed in 4.9.