Outlook 2007 can't encode UTF-8 messages

Every time I have received a message not written with Outlook, but still got
UTF-8 marked right in the heading:
"Date: Tue, 6 May 2008 15:04:38 +0100
Message-ID: <4239B470A8024374BC5458348EE8F411@abg.fsc.net>
MIME-Version: 1.0
Content-Type: text/plain;
    charset="UTF-8"
Content-Transfer-Encoding: 8bit
X-Mailer: Microsoft CDO for Windows 2000"

The scandinavian special caracters åöä do not exist at all:
"Jos voi viel kysy, mik ServerView versio oli kyseess ?"

Should be:
"Jos voi vielä kysyä, mikä ServerView versio oli kyseessä ?"

The problem is in Outlook. If I change encoding from UTF-8 to something else
(for example UTF-7, ISO-8859-1 etc) and then back to UTF-8, Outlook prinst
messages perfectly.

So it is not lethal, but it is quite anoying.

Tero