problem with false ids

From: Judy (
Date: 04/24/03

From: "Judy" <>
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?