I think this discussion would be much better on the mailop list, but the short answer here is "real mail servers have real, non-generic names with matching forward/reverse DNS". --------
That certainly is true, but if a "real mail server" that has real, non-generic names with matching forward/reverse DNS happens to be in the same /24 as a server that doesn't it is given a poor reputation by Senderbase since Senderbase cannot do simple RIR lookups to see the scope of that particular customer's network/impact. -Drew
