[avast! heuristic - WARNING] --> e-mails

Avast Free Antivirus / Premium Security
1

Hi,

today I received an e-mail from avast! 5 with subject “[avast! heuristic - WARNING]” with no content except the real sender of the e-mail and me, the real destination.
I’m using avast antivirus with the mail shield protection active.
Beside the check avast did on the e-mails received by me, how can I see the content of the e-mail the sender sent to me before avast processed them?

Thanks

2

I have just received two of these today from two different associates?