Hidden data within an email-what is it?How can I find out?

What email client are you using?

Outlook Express.

Try doing a file save as in the message and save it as text - see if that shows where the rest of it is.

I did as you suggested and nothing happened.. well... what I saved showed only 340 bytes. I need to send it to an expert who can disect it, but who?

Where did you get the 830kb number from?

Did you receive the .pps as an attachment to a multiply attached email in which you have to open multiple emails to get to the original email with the attached file? That tends to increase the size of the actual email you receive.

Last night, while drifting in and out of sleep I think I figured out where or what that missing 700+ kbs went or what it was being used for...
My friend uses Incredimail Stationery and often includes music, but as I seldom have my speakers on, I am not aware that the email is 'musical'.
I realise now that even though the PPS attachment was only 120kb, and the whole email came to over 840kbs, I now have come to believe that the music in the email took up that missing 700+kb.
When I saved the PPS to My Documents, then reattached it to send it on to another person, it was in a 'clean' email with no other impediments such as music.
Always on a learning curve I am, and today is no exception.
I do appreciate every single response. This is one place I can expect excellent help and advice. V.