Version: KMail 1.12.4 (using KDE 4.3.4) Compiler: KDE 4.3.4 and 4.3.5 karmic ubuntu 64bit OS: Linux Installed from: Ubuntu Packages Open Kontact -> mail module (Kmail) -> new mail -> copy/paste some files in the text part of the mail editor -> a menu appear asking you if you want add files in the mail body or as attachment -> select as attachment -> the attachment part appear listing all the files pasted -> copy/paste another(s) file(s) not in the text part but in the attachment part -> kmail crashes with kontact... and the mail is losted.
Cannot reproduce in KDE 4.4.0
Closing then.