Have you tried turning off UTF-8 support? See this message:
At 02:00 PM 12/3/2004, firstname.lastname@example.org wrote:
>New at Linux 9 and anomy... it appears that html messages that go through
>our server running (latest and greatest) anomy sanitizer have their country
>characters replaced with junk... Can someone help point me in the
>directions I should look at on this machine?