Managing attachments

Hi;

I have a recipe to filter some undesireable attachements that works fine. 
However I needed to warn both the sender and the addressee of the blocking, 
informing the name of the blocked attachment(s) and the body of the message (if 
possible, the body and the header). I wonder how to achieve that using Formail.

Can anyone help me on this?

Thank you in advance.

Regards

Bruno