+.B \-fixtype
+switch ensures that each part of the message has the correct MIME type
+shown in its Content-Type header. It may be repeated. It is
+typically used to replace \*(lqapplication/octet-stream\*(rq with a
+more descriptive MIME type. It may not be used for multipart and
+message types.
+.PP
+.B mhfixmsg
+applies one transformation unconditionally: it removes an extraneous
+trailing semicolon from the parameter lists of MIME header fields.
+.PP
+The