Inbound message clean - messages on all ? ?

When emails come from certain people, I get the usual

"avast! Antivirus: Inbound message clean.

Virus Database (VPS): 0539-6, 02/10/2005
Tested on: 03/10/2005 14:12:23
avast! - copyright (c) 2000-2004 ALWIL Software."

But, when I get emails from others, there’s no message

Anyone any ideas on why this happens please? Any way of getting all incoming messages to have the message?

Any help appreciated.

Are you talking about HTML or txt received email?
Are you checking into an email program or webmail (into your browser)?