Someone asked about this awhile back, I find a listing on a tools site, if you run the RBL check against your domain or etc, you can find a list of them.
http://www.mob.net/~ted/tools/ The MX tool comes in very handy as well. - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]