Version: 1.6.1 (using KDE 3.2 BRANCH >= 20040204, Mandrake Linux Cooker i586 - Cooker) Compiler: gcc version 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk) OS: Linux (i686) release 2.6.3-4.tmb.1mdk Its a bit of a problem for me to describe the problem, so here is a blow by blow description of how to see it: - run kmail - send yourself a simple text message (it works also for emails with HTML and attachments, but simple test cases are best). - send yourself another simple text message - once you receive both messages, mark both of them in kmail message list (for example by holding CTRL and selecting both emails) and forward them to yourself as a message digest. - once you receive the new forwarded message, show view it in a mail viewer (make sure you have the MIME tree viewer visible). you should see the two embedded messages distinctly. - now click the first message part in the MIME tree viewer - the one of type 'email message'. you should see one of the embedded messages by itself, including the header display KMail uses, with an outline that says "embedded message" or something. this is good. - the MIME tree viewer should now have opened a sub item to the one you just chosen which is named for the subject of the embedded message and is of type "plain text". now choose that. only the body of the message will be displayed. this is still good. - now choose the parent again (the entire embedded message). this should return you to the full message view with the fancy kmail header display - unfortunatly, it doesn't - it still displays the message body. - try to choose something else in the MIME tree and then go back the embedded message - still just the body is shown. - in order to reset the behavior you must choose the root of the MIME tree (the entire embedded message) or choose another mail from Kmail message list and then go back (same thing). only then is it possible to view the embedded message with the headers. This is probably not very important bug, but its a bit anoying when reading large message digests (as from high volume mailing lists) using the MIME tree viewer (which is a very useful tool). after you once make a mistake and choose the body part, its impossible to see who sent the message and to who unless you climb up to the root of the (possibly very large digest) and go back down again.
Confirmed on KMail r599765 (post 3.5.5)
Still reproducible on trunk r881868.
This works for me in kmail 1.12.0 (kde 4.3 rc2). When the option to show mimetree is set, the mimetree is kept until the mail is closed (or in the preview panel until I preview another one). When the option to not show mimetree is set, when I click in an encapsulated message, it is opened in a new window.
Fixed in recent kmail versions. Clicking on the body part then on the plain text message and back on the body part displays what is expected.