[159365] in North American Network Operators' Group
Re: [SHAME] Spam Rats
daemon@ATHENA.MIT.EDU (Chris Boyd)
Wed Jan 9 22:42:15 2013
From: Chris Boyd <cboyd@gizmopartners.com>
In-Reply-To: <50EE2E73.2060309@jdcomputers.com.au>
Date: Wed, 9 Jan 2013 21:27:17 -0600
To: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Jan 9, 2013, at 8:58 PM, Julian DeMarchi wrote:
> This is the first RBL I have seen list a /24 for lack of PTRs. Not for
> sending spam, but just PTRs alone. How do you explain this to your
> customer?
We're small shop, but our policy is not to accept email from addresses =
without PTRs. And we have a long list of pool/dhcp/dyn/resnet PTRs we =
don't accept mail from as well.
I tried SpamRats a few years ago, but found them to have too many false =
positives. Then, they were trying to be early detectors of spam =
orginiating from static IP cable/DSL customers. Good idea, but poorly =
executed in operation.
--Chris=
