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Network Security Incidents
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Re: Constant spam from Verizon.net

Subject: Re: Constant spam from Verizon.net
Date: Fri, 8 Jul 2005 11:54:38 -0500
The spam is always from mstiffanij@netzero.com

The IPs are always Verizon DSL IPs 71.107.XXX.XXX

A number of people have responded with  "Why don't you block them"...  I
have blocked them, that's not the problem. The bigger issue is that Verizon
refuses to take action or even let me talk to anybody in the security
department... their support department claims to not even have a phone
number to reach anybody in security.

I have the resources in place to prevent the attacks, I'm just tired of
seeing the same spammer show up with a count of 5,000 attempts every single
day.  I have had similar incidents with other major providers such as SBC,
at least they're eventually responsive. But Verizon refuses to cooperate.


----- Original Message ----- 
From: "Michael T Pins" <mtpins@nndev.org>
To: <incidents@securityfocus.com>
Sent: Thursday, July 07, 2005 6:29 PM
Subject: Re: Constant spam from Verizon.net


Patrick Kremer writes:

I am at a loss for what to do.

I'm taking spam messages at the rate of 6,000 per day from a specific
e-mail
address linked to several Verizon DSL IP addresses.

I have sent numerous logfiles to both security@ and abuse@verizon.net and
have received no response.

I have spoken with their tech support numerous times and both they and
their
supervisors say they can not help, they claim the e-mail addresses are
the
only recourse.

Define "a specific e-mail address linked to several Verizon DSL IP
addresses."

If all the email is originating from just a few DSL IP addresses, just add
those IPs to your access list (assuming you're running sendmail).  If not,
you'll need to be rather more specific as to what's going on.

Yes, this is a bandage on the symptom rather than a solution to the real
problem, but until you can convince someone at Verizon to cut those IPs
off, it will at least stop the spam.

-- 
Michael T Pins              | "Major combat operations have ended."
mtpins@nndev.org            | - George W. Bush, 5/1/03
keeper of the nn sources    |
ftp://ftp.nndev.org/pub     |


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