Hi all, I'm getting a lot of backscatter, mostly NDRs of spam messages. My domain is apparently being spoofed in outgoing messages. It would be great if I could intentionaly blacklist the domain for, say, a week, to make the spammer desist. This could be a new type of block list. It would be handy for holders of inactive domains. Perhaps the domain owner could be authenticated through the registrar to control the list (I could imagine GoDaddy adding this as a feature). Thoughts and suggestions?