Matthew.van.Eerde at hbinc.com wrote: > That is the sole purpose of SPF, to force domains that send spam to > admit ownership of the sending servers. spammer.com. 1d IN TXT "v=spf1 +all" I own the world! :-) (Yes, I know SPF implementations can treat such a record with suspicion, but in principle, it's a valid record.) Regards, David.