Version: (using KDE 4.4.1) Compiler: GCC 4.4.3 Target: x86_64-unknown-linux-gnu Configured with: ../gcc-4.4.3/configure --prefix=/usr --libexecdir=/usr/lib --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,fortran --disable-multilib --disable-bootstrap Thread model: posix OS: Linux Installed from: Compiled From Sources KMail icons is shown only on one tray plasmoids and not on all the rest. According to Dario's comment on bug #206255 (https://bugs.kde.org/show_bug.cgi?id=206255#c4) it is application's problem with not using fresh systray protocol.
Thank you for taking the time to file a bug report. KMail2 was released in 2011, and the entire code base went through significant changes. We are currently in the process of porting to Qt5 and KF5. It is unlikely that these bugs are still valid in KMail2. We welcome you to try out KMail 2 with the KDE 4.14 release and give your feedback.