Re: MASS EMAIL bypass BLACKLIST?

[Tremaine Lea <tremaine () gmail com>]

http://en.wikipedia.org/wiki/Fast_flux

It's a fairly common practice for spammers.

Tremaine Lea
Network Security Consultant
Intrepid ACL
"Paranoia for hire"


AFH Security wrote:
> Hey guys,
>
> I was wondering if there was a way of bypassing blacklist and spam
> filters?
> I keep receiving emails from a domain and I've blocked the ip from my
> server as well as blacklisted the email but for some reason they keep
> getting through. I'm guessing they're using a DNS with a low ttll with
> a botnet? (Yes kinda like the movie Untraceable).
> That'd be awesome if I could get some form of a response.


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