A client had this tip:
Remember those winmail.dat documents in my email? There is always a way to get around things…I sent the document (a photograph) to another person, and they sent it back, and I could see the photo. So is the problem is with my Mac, or with the sender?
Thank you for the tip about winmail.dat attachments! I am still not certain which side is the issue. I suspect it’s really Microsoft Outlook on their side, but the person you asked to relay it back to you also has Outlook, so it worked for them.
There is also a free app to translate them: http://www.macupdate.com/app/mac/12705/tnefs-enough
But I wonder, what would happen if one mailed the winmail.dat file back to oneself? Also, can we see the attachments fine on your iPhone? I’ll update the post if I get further feedback from our client.