nanog mailing list archives
Re: Spammers Skirt IP Authentication Attempts
From: vijay gill <vgill () vijaygill com>
Date: Wed, 8 Sep 2004 11:02:53 +0000
On Wed, Sep 08, 2004 at 11:54:32AM +0100, Paul Jakma wrote:
Except that, SPF records are as easy to setup for a spammer, as for you and I. If the above is a spammer, then SPF for foobar.com will list randomgibberish.comcast.net as an authorised sender. SPF will absolutely not have any effect on spam.
But if instead of foobar.com, it is vix.com or citibank.com, then their SPF records will not point at randomgibberish.comcast.net as an authorized sender. That means that if I do get a mail purporting to be from citi from randomgibberish, I can junk it without hesitation. /vijay
Current thread:
- Re: Spammers Skirt IP Authentication Attempts, (continued)
- Re: Spammers Skirt IP Authentication Attempts Tom (UnitedLayer) (Sep 06)
- Re: Spammers Skirt IP Authentication Attempts Paul Jakma (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts Stephane Bortzmeyer (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts Paul Jakma (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts J.D. Falk (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts Tom (UnitedLayer) (Sep 06)
- Re: Spammers Skirt IP Authentication Attempts Paul Vixie (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts Paul Jakma (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts J.D. Falk (Sep 07)
- Re: Spammers Skirt IP Authentication Attempts Douglas Otis (Sep 07)
- Message not available
- Re: Spammers Skirt IP Authentication Attempts Paul Jakma (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts vijay gill (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Paul Jakma (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts vijay gill (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Stephen J. Wilcox (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Dan Mahoney, System Admin (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Ricardo "Rick" Gonzalez (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Dan Mahoney, System Admin (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Susan Harris (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Paul Vixie (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Douglas Otis (Sep 08)
- Re: Spammers Skirt IP Authentication Attempts Peter Corlett (Sep 08)