Version: 1.7.1 (using KDE KDE 3.3.1) Installed from: SuSE RPMs When clicking on an attachment of type text/rfc822-headers, KMail opens a dialog window asking how to view the attachment. The dialog incorrectly specifies the name of the attachment as a double quote character (`"'). The default option is to open the attachment with KMail. Selecting the default option causes KMail to try to launch itself again in order to view the attachment. A couple things need to be fixed: 1) Unnamed attachments should trigger the message `Open unnamed attachment of type foo/bar?' instead of the nonsensical `Open attachment "?' 2) KMail should not launch a separate process to view an attachment of type text/rfc822-headers. It should be opened in a new window just like a message/delivery-status attachment. See attached test case and screenshot.
Created attachment 7931 [details] E-mail message with offending attachment
Created attachment 7932 [details] Screenshot of nonsensical dialog prompt
Confirming bugs still exists in KDE 4.2.2. I suspect this might not have anything to do with the MIME type, but rather the fact that the attachment has no name.
KDE 4.3.1 simply displays the headers when I select the attachment in the message structure viewer, so no problem here.