[nsp-sec] Bounce message backscatter attack against abuse mailbox

[Florian Weimer]

* Mike Hughes:

> Not massive in terms of rate, about 20 per minute, but it will
> probably get annoying if these keep coming in for more than about
> 5-10 mins. We already correctly recognise them as bounces and don't
> open cases for them anyway.

I've been on the receiving end as well, with several different
mailboxes (none of them evidently abuse-related), but I wouldn't label
it as an attack: similar to your case, the rate was so low that even
my personal mail server behind a feeble DSL line could keep up.

-- 
Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99