I'm not being clear enough here, sorry. There is NO attachment to lose. The images are somehow in the body of the email, so its not a case of not being able to decode an attachment. I never used to have this issue with Mac users sending emails, I get thousands of emails, many with attachments, from all sorts of people. It seems as if there is some change in recent mac email procedure which is the agent of this problem. Both of my regular senders with macs have had new machines in the last 6 months or so, and since then I never get their images. One of them, they used to appear oddly, with entirely different filenames to what they were sent as, but I just renamed them and they were fine, but no more. Neither of these senders are idiots, and both long term Mac users. One is a journalist and magazine editor, and the other an engineer who used to work for some French mobile telephony business, but is now an engineering business in his own right. One uses Macace.net, and the other uses Gmail normally, after giving up on French email services.
We have also found a silly but infuriating issue re "OSes". We both use Turbocad. I use Turbocad for Windows, he uses Turbocad for Mac. We cannot exchange files, there is no conversion utility between .tcm and tcw files! Bangs head on desk...
I really don't want to have to change email provider, when Virgin is far and away the best solution for me on speed and price, if the issue is solvable by other methods.