I got a couple of undeliverables that directs me to this web site which I assume means they have my domain listed as blacklist.
The site I'm directed to is:
The undeliverable is:
firstname.lastname@example.org on 7/7/2005 3:20 PM
The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
<mail.domain.com #5.3.0 smtp;553 5.3.0 Message from 188.8.131.52 rejected - see http://njabl.org/
I am not running open relay on my exchage 2003 server.
I am reluctant to enter my domain info into this site.