Probably because you're not sending a vCard at all, but are trying to send
an actual contact but it fails because you're sending a non-RTF message or
to a non-RTF recipient. Try using the Actions | Forward as vCard command to
send a real vCard.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> When I include a vcard in a message by using the copy and past technique
> it
> is convereted to a message when the message containing the vcard is sent.
> This just started after several years operating properly.
>
> Thanks for the help