problem with false ids

From: Judy (aaasg@hotmail.com)
Date: 04/24/03 

From: "Judy" <aaasg@hotmail.com>
Date: Thu, 24 Apr 2003 14:37:45 -0700

recently I began getting messages from various postmasters
that the email I sent was unable to be delivered. The
problem is that I didn't send these emails. Is anyone
else having the same problem and how do I fix it?