Mailman & "Charactères Français"

Greetings.

Namazu is having problems displaying and understanding french characters such as
"àéèçô..." when used to search Mailman archives. A word like "troisième" is
displayed (and searched) as "troisime" in Namazu... Notice the missing "è".

I am using Mailman 2.1 and Namazu 2.0.12.

What is the problem and how can i fix this? 

Any insight is appreciated.