Version: (using KDE 3.5.9) Installed from: Mandriva RPMs mdv : 26761 kmail is able to open eml files (using the "open" box) but eml files aren't associated to kmail by default which prevents you from opening a mail containing eml attachments.
This should already be possible, see bug 143040. Maybe the files are not correctly identified as message/rfc822 ? *** This bug has been marked as a duplicate of 143040 ***