Getting the followign message and would like to terminate the ability of anyone to use our domain name without authorization:
Your message did not reach some or all of the intended recipients.
Subject: Re: 433 VtAGGvRA
Sent: 5/31/2006 5:14 PM
The following recipient(s) could not be reached:
firstname.lastname@example.org on 5/31/2006 5:14 PM
The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.