[81219] in North American Network Operators' Group
Re: Verizon is easily fooled by spamming zombies
daemon@ATHENA.MIT.EDU (Martin Hepworth)
Wed Jun 1 13:01:26 2005
Date: Wed, 01 Jun 2005 18:00:37 +0100
From: Martin Hepworth <martinh@solid-state-logic.com>
To: "Patrick W. Gilmore" <patrick@ianai.net>
Cc: nanog@nanog.org
In-Reply-To: <7B91BF16-A66D-4353-A46B-72483E592E65@ianai.net>
X-Solid-State-Logic-MailScanner-From: martinh@solid-state-logic.com
Errors-To: owner-nanog@merit.edu
Patrick W. Gilmore wrote:
>
> On Jun 1, 2005, at 12:28 PM, Steven Champeon wrote:
>
>> IOW, VZ isn't even checking to see if a zombie'd host is forging its
>> own domain into HELO, regardless of whether it comes from Comcast or
>> UUNet, and as long as the forged sender has a verizon.net address, and
>> the recipient hasn't blocked VZ's silly callback system, the message
>> is relayed. Thanks, Verizon. We can hear you now.
>
>
> The other half of this is if you are on VZ's network and try to send
> mail through their system, you cannot unless you have a "verizon.net"
> from address. Or at least that was the case when my friend with VZ DSL
> tried to send e-mail through VZ from her personal domain.
>
Assuming it does via their systems - most zombies have their own smtp
engine from what I understand
--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300
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