Senderbase is offbase, need some help
Jon Lewis
jlewis at lewis.org
Sat Apr 17 23:07:04 UTC 2010
On Sat, 17 Apr 2010, William Herrin wrote:
> On Fri, Apr 16, 2010 at 6:25 PM, Mike <mike-nanog at tiedyenetworks.com> wrote:
>> I've tried to get the attention of senderbase, which is claiming activity
>> from my address space which is in fact either un-routed or within dynamic
>> subscriber blocks that have outbound smtp filtering in effect.
>
> Interesting; I see similar results for my address space. Two
> addresses, one of which hasn't been attached to a machine for a decade
> and the other a virtual IP on a web server where the particular IP
> never emits connections. Magnitude's only "0.48" for both but still,
> they shouldn't even appear.
I suspect a bug in their system. I checked a handful of unrouted blocks
from our address space and eventually hit a /24 from which senderbase
lists an IP with magnitude 0.48, but the space hasn't been routed for 13
months. They say they saw something from it on 2010-04-06...which I'd say
is highly unlikely.
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
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