From: Wietse Venema (wietseporcupine.org)
Date: Tue Jan 01 2008 - 16:31:29 CST

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JD Bronson:
> I am looking for any advice on how to mitigate an attack.
>
> I appear to be under attack from IPs all over the world attempting
> to send email to one of my domains with all invalid usernames:
>
> For example:
> 1 Laasixcompanies.com (<>)
> 1 Leitnerkkiwhsixcompanies.com (<>)
> 1 lemerandsixcompanies.com (<>)
> 1 Linassixcompanies.com (<>)
> 1 Littleflowersixcompanies.com (<>)
> 1 Lounekmmhvpsixcompanies.com (<>)
> 1 isabelle.lundquistsixcompanies.com (<>)
> 1 merloptlqsixcompanies.com (<>)
> 1 Mikhail-Rowensixcompanies.com (<>)
> 1 Miu_Connollysixcompanies.com (<>)
> 1 Natorywasixcompanies.com (<>)
> (tons and tons of these)

Backscatter. Joe-job.

http://www.postfix.org/BACKSCATTER_README.html.

        Wietse

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