Version: 1.12.1 (using 4.3.1 (KDE 4.3.1), Arch Linux) Compiler: gcc OS: Linux (i686) release 2.6.30-ARCH If I set parameter 'download attached files by request' I can see folowing bug: After receiving a mail with non english (russian in my situation) named attached file, kmail displays they as 'UTF-8' or 'KOI8-R'. And pass that name to external application if I try open it. If in this moment I press V-key for display mail source, name has changed on true.
*** This bug has been marked as a duplicate of bug 206276 ***