Version: (using KDE 4.3.3) Installed from: Ubuntu Packages Because I use the "Check Mail" button much more often than the "New Message" button, I wanted to have this order in the toolbar: Check Mail | New | ... Therefore I removed the "New Message..." button from the kontact main toolbar. After restarting kontact the "new mail" button is gone. Here is a short demonstration video: http://launchpadlibrarian.net/35118957/Kontact_Toolbar.ogv The downstream bug report is here: https://bugs.launchpad.net/ubuntu/+source/kdepim/+bug/471729
This seems to be fixed in KDE 4.4.