Has anyone experimented with checking the spaminess of emails with a top Received: header which specifies a domain which does not have a website reachable with only www.domain.domainTLD? For example I just received a spam with a Received:
Received: from 65.182.134.240 (juniaplanet.com [65.182.134.240]) but http://www.juniaplanet.com doesn't get you a website, not even a placeholder one.
Is that something we might give points for?
Steve
