[RndTbl] Shaw dropping bounces?

Sean Cody sean at tinfoilhat.ca
Wed Jun 8 10:14:02 CDT 2011

Seconded.  Different entities deal with backscatter differently so the easiest option for an ISP is to   drop undeliverable silently.  This wouldn't be the first time I've seen this behaviour.

There are a few BL's out there that go nuts over backscatter (despite it being legitimate in some cases) and a few others use their clout to charge you to get off their lists.

BL's have been losing their morality over the past few years (many are good but the ones being evil are growing faster than the ones being good).

Sean (mobile)

On 2011-06-08, at 9:37 AM, "Peter O'Gorman" <peter at pogma.com> wrote:

> On 06/07/2011 05:48 PM, Trevor Cordes wrote:
>> We just noticed something strange:
>> Shaw's mail server appears to be dropping some bounces.
>> The 2nd (invalid domain) one will not bounce.  It will just disappear.
> This makes sense to me, shaw doesn't want to send backscatter spam.
> I know a few people who avoid the whole dynamic ip/ISP port blocking by 
> using a $5/month vps, openvpn and iptables to provide their home machine 
> with an unfiltered static ip address. Have you considered this?
> Peter
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