Hi Folks

I worte a program sending Business-to-Business HTML-Mails.
Lately some of my customers complain, that on Outlook-2003 clients my
HTML-mails do not immediately show as HTML but as "Unknown Attachment".
Upon double click the HTML is properly displayed with all images.

If a mail has several recipients those using
Mozilla/Notes/WebMail/Eudora etc. see the HTML immediately and some
with Outlook-2003 report the behavoiur above.
Even my Outlook-Express displays the mail properly.

Has anyone an idea?
Any hints welcome
Joerg