How can I import my emails from KMail to Evolution?
If your KMail folders are set to MBox, you can apparently import them one folder at a time by using “Import” in the “File” menu or just by copying them from the KMail location to the Evolution location. It seems that they were detected as deleted, so you cannot see them. You have to unhide deleted files in the “View” menu and continue from there. If your KMail folders are set to Maildir, set up a mail account in Evolution (a bogus account) and select server type as maildir and point to the appropriate folders. You can also find a script for exporting mail from kmail to Evolution at http://lists.ximian.com/archives/public/evolution/2004-November/040666.html.