spf-discuss
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Re: Re: Interaction with anti-spam systems

2004-08-05 03:40:27
On Thu, 2004-08-05 at 03:29, Michel Bouissou wrote:


To advance the discussion with some real-life example, you will find below 
the 
list of domains for which my (relatively low-traffic) personal server has 
received a "MAIL FROM:" in the last days (for any kind of messages, either 
legitimate or spam or forged), and that DO have an SPF record.

<!- snip !->

Feeling sorry for anyone on this list who has fallen prey to the
blatantly MISLEADING wording on the main SPF site, and actually believes
that SPF stops SPAM, I have the following to say:

SPF does not stop SPAM.  SPF is a means for network administrators and
domain owners to publish through DNS a "network space" if you will that
is permitted to use its domain name.

OF COURSE SPAMMERS WILL PUBLISH SPF!  This is because they are lemmings
being led off a cliff, this is what we wanted them to do...  If they
publish, then they do us a really nice favour and in general describe
their network somewhat, in addition making it REALLY easy to
re-implement RHBL's (right hand black lists EG: black list by domain
name).   RHBL's become effective ONLY if spammers can not forge!  So, us
seeing spammers publishing SPF is _GOOD_.  Very good indeed.

Cheers,

James

-- 
James Couzens,
Programmer
                                                     ( ( (      
      ((__))         __lib__        __SPF__        '. ___ .'    
       (00)           (o o)          (0~0)        '  (> <) '    
---nn-(o__o)-nn---ooO--(_)--Ooo--ooO--(_)--Ooo---ooO--(_)--Ooo---

http://libspf.org -- ANSI C Sender Policy Framework library
http://libsrs.org -- ANSI C Sender Rewriting Scheme library
-----------------------------------------------------------------
PGP: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x7A7C7DCF

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