If this mail arrives the issue has been solved...

In Tools -> Options -> mail format I clicked on Editor options
And set for all copy/paste actions to not keep default formatting but instead
use text-only.

Kind regards,
Robby Pelssers

-----Original Message-----
From: Robby Pelssers [mailto:robby.pelssers@xxxxxxxxx]
Sent: Thursday, March 18, 2010 1:49 PM
To: XSLT mailing list
Subject:  problem with sending mails using outlook 2007

After 3 weeks of trying out a lot of stuff i still can't get my mails to be
accepted by the mailer daemon.  So i ended up using our webmail variant for
which in some cases my mails arrive...

Anyone who can point out instructions to get outlook 2007 configured
properly?

Steps i already tried:

Tools -> options -> mail format
message format has been set to 'plain text'

then when clicking the international options button
-deselected 'auto select encoding for outgoing messages'
-preffered encoding for outgoing messages has been set to UTF-8

Robby Pelssers