[SHAME] Spam Rats
cboyd at gizmopartners.com
Thu Jan 10 03:27:17 UTC 2013
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
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.
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