Apple Mail stripping attachments from Omniture SiteCatalyst?

Hi,

I just found this topic: http://discussions.apple.com/thread.jspa?threadID=1823827

I have the same problem. Omniture sitecatalyst sends me reports as attachments. I can see it through the exchange webmail server, but in mail the attachment is gone, it's a simple pdf (500k).

All the virus/spam checks leave the attachment intact (otherwise it wouldn't be in the webmail client)
Collegues that are using the normal pop/imap server instead of the exchange server have the same problem when using mail.app (this happens in 10.5.x & 10.6.x)

Anyone has a solution?