outlook 2007 - vcard

I have a user who is from sales, and he constantly gets vcards from clients.
The problem is the vcards are being stripped and not getting through.

We do not block them @ Exchange 2007 end. So it has to do from the client end.
Does anyone know in Outlook 2007 where I can stop blocking his vcards so they can get through?

There are no rules and they are not going into his SPAM box.

thanks

DOes he get a message like:

You may receive an "Outlook blocked access to the following potentially unsafe attachments" message in Outlook

If so, try adjusting the security:

http://support.microsoft.com/kb/829982/en-us
How to customize attachment security behavior

I guess it could also happen if he screwed up his file type association settings for .vcf

TEk