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0.0.0.0? I don't see the problem(s)
Suppose spammer.com sets up his domain to say that any server with IP address *.*.*.* can sent mail for spammer.com.

That doesn't benefit him, because he's trying to spoof another domain, e.g. hotmail.com to bypass the blacklist of his 'spammer.com' domain. So its not what he sets his own domain to say, its what hotmail.com setups their domain to say.

"At first, it needs to be used on things like Spamassassin"

Also Spamassassin already supports SPF since v3, you need the Mail::SPF::Query package.
Posted by: Nigel Johnstone   Posted on: 08/09/05 You are currently: a Guest | Members login | Terms of Use
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Worthless?  Otto_Delete | 08/09/05
Not necessarily  FamilyManFirst | 08/09/05
Blackholes  Yagotta B. Kidding | 08/09/05
Re: not necessarily  Otto_Delete | 08/09/05
SPEWS  Yagotta B. Kidding | 08/09/05
Verizon *require* SPF already  Nigel Johnstone | 08/09/05
Stargate.com  alaricd | 08/09/05
I agree!  Brian@... | 08/09/05
0.0.0.0? I don't see the problem(s)  Nigel Johnstone | 08/09/05
Alaric?  Yagotta B. Kidding | 08/09/05
Too late  Bill4 | 08/09/05
But Verizon doesn't get spam from you!  Nigel Johnstone | 08/09/05
SPAM: headers  Yagotta B. Kidding | 08/09/05
Only sort of  Nigel Johnstone | 08/09/05
Spoofing IP  Yagotta B. Kidding | 08/09/05
publish an SPF record  Apple ipod | 05/28/07
Fool-proof Method for Stopping SPAM  coffeenite | 08/09/05
And just HOW is Spam sent?  BitTwiddler | 08/09/05
And by people like the SpamKing  balsover | 08/09/05
It's All Windows Fault And That's A Fact  itanalyst | 08/09/05
Self-contradiction  Real World | 08/09/05
75%  Yagotta B. Kidding | 08/09/05
If they're that dumb, they need drool-resistant keyboards  balsover | 08/09/05
The problem is  Real World | 08/09/05
Missed the point  rapson | 08/09/05
Why do analysts often seem so clueless?  balsover | 08/09/05
I Don't Necessarily Put The Blame On Analysts  itanalyst | 08/09/05
Your post seems a bit off topic, it has nothing to do with Linux vs MS  balsover | 08/09/05
That's Why They Have Dual Boot  itanalyst | 08/09/05
Burning  Yagotta B. Kidding | 08/09/05
DNSBL  Yagotta B. Kidding | 08/09/05
MS' own fault  John L. Ries | 08/09/05
their real goal  Apple ipod | 05/28/07
MS, Remove license strings from SenderID ... and the world will come.  Plain Logic | 08/09/05
An alternative approach to fighting Spam & phishing  secureplay_z | 08/11/05

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