> According to the docs, this:
>
> (setq mew-config-alist
> '(("default"
> (mailbox-type 'mbox)
> (mbox-command "incm")
> (mbox-command-arg "-d /var/spool/mail/sx0005"))))
I think you forget to quote the keys.
E.g. "mailbox-type".
--Kazu