On Tue, 14 Dec 2004 11:01:39 -0600, Michael Satterwhite wrote: > Does anyone know of a tool to convert > from mdir to mbox format? KMail? Create an (mbox) mail folder in KMail and copy all the messages from your maildir message folder into it. Copy the resulting mbox file to a place where your new application (e.g., Thunderbird) can find it. It's tedious but simple.