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SPF *still* working perfectly
From the story you linked to my comment repeated:


But that's exactly what they're supposed to do.

If the spammer uses real information & SPF record they are caught by the black list filter, if they use fake information then the SPF record doesn't match and they get filtered at the SPF check.

Either way they've been filtered.

The other cases work too:

For example the spammer fakes emails as though they come from Hotmail.com, Microsoft doesn't publish SPF records for its servers. Because of this spam is more likely to come with a fake hotmail source address, and so hotmail addresses are more vigorously filtered by regular Baysian filters. They are more likely to be spam.

So even if not everyone publishes SPF records, it pushes the spammers to either publish true SPF records, or narrows the number of domains they can fake making it easier to filter by other means.
Posted by: Nigel Johnstone   Posted on: 09/13/04 You are currently: a Guest | Members login | Terms of Use
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I read the first paragraph and that was enough  mlindl | 09/13/04
Funny..  Patrick Jones | 09/13/04
Microsoft fails in their attempt to "own" e-mail.  Seething Ganglia | 09/13/04
meanwhile....  tamuhockey | 09/13/04
outlook - ms mail server works fine  V Sanders | 09/14/04
Do you have any proof?  d_jedi | 09/13/04
Did Microsoft put all the cards on the table?  DonnieBoy | 09/13/04
and if you wait until after the fact  V Sanders | 09/13/04
It would appear the answer is yes...  No_Ax_to_Grind | 09/14/04
what more?  ryusen | 09/14/04
Huh? Anyone can do a patent search...  No_Ax_to_Grind | 09/14/04
Can you do a pending patent search?  Michael Kelly | 09/14/04
Microsoft's track record speaks for its self  Seething Ganglia | 09/13/04
we have all seen with IE  V Sanders | 09/13/04
What did y'all expect after the DOJ ...  Judas I. | 09/13/04
Pobox's SPF email proposal  Nigel Johnstone | 09/13/04
And here is why that proposal won't work either:  Confused by religion | 09/13/04
SPF *still* working perfectly  Nigel Johnstone | 09/13/04
Blacklisting of SPF names risky.  dotis | 09/13/04
Sorry Milly, not a good link...  John Le'Brecage | 09/13/04
Sender-ID makes SPF stronger  Roger Ramjet | 09/14/04
No, not completely..  Patrick Jones | 09/13/04
spammers publishing SPF is GOOD!  CobraA1 | 09/14/04
Sender-ID authorizes, it does not authenticate.  dotis | 09/13/04
What?  Patrick Jones | 09/13/04
Umm, really?  CobraA1 | 09/14/04
Follow up  CobraA1 | 09/14/04
very cool  V Sanders | 09/13/04
Reality check to Microsoft- we don't need you.  Xunil_Sierutuf | 09/14/04
The real question, does it matter when you own the market.  No_Ax_to_Grind | 09/14/04
This is a server based technology, not desktop!  B.O.F.H. | 09/14/04
Correct, to a point.  No_Ax_to_Grind | 09/14/04
You really aren't that clueless, are you?  B.O.F.H. | 09/14/04
And you aren't listening.  No_Ax_to_Grind | 09/14/04
Yes he really is that clueless!  sa_z | 09/14/04
It'll be a question of who can last the standoff the longest  Michael Kelly | 09/14/04
SPF augmenst DNS, get a clue!  B.O.F.H. | 09/14/04
Gaining market share  alterego_z | 09/14/04
what does joe average use for e-mail?  ryusen | 09/14/04
You really need to stop.  Patrick Jones | 09/14/04
See: Correct to a point.  No_Ax_to_Grind | 09/14/04
I did. You are still wrong.  Patrick Jones | 09/14/04
Cornered with facts.  sa_z | 09/14/04
wasn't there another article, recently where...  ryusen | 09/14/04
Once more See "Correct to a point".  No_Ax_to_Grind | 09/14/04
At least Mike Cox intends to be funny!  sa_z | 09/14/04
And you attempt what? Blank posts???  No_Ax_to_Grind | 09/14/04
That youa are a M$ troll  sa_z | 09/14/04
I only see one person calling names. YOU!  No_Ax_to_Grind | 09/14/04
No_Ax, you need to learn some basic vocabulary!  B.O.F.H. | 09/14/04
Troll Factor 9.4  sa_z | 09/14/04
Yes you are a name caller but I won't hold it against you.  No_Ax_to_Grind | 09/14/04
damn, that was a really harsh slam on Microsoft!  B.O.F.H. | 09/14/04
on front page extensions...  ryusen | 09/14/04
Wrong again  Richard Flude | 09/14/04
No_Ax fails to respond to valid criticism  CobraA1 | 09/15/04
Natural Consequence  John L. Ries | 09/14/04

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