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 :: Mailing Lists

[ILUG] Re: spammers at work

[ILUG] Re: spammers at work

Kenn Humborg kenn at bluetree.ie
Fri Mar 15 13:22:50 GMT 2002


>  "Rumplestiltskin" attacks are becoming more common, and another major
>  annoyance one the increase is spamming-backlash in the form of mailer-
>  daemon bounce messages, where the spammer was using addresses from your
>  domain as envelope sender. We were recently hit by this and received
>  over 15.000 bounce messages (spread over a few days, thankfully).

Oh - I can top that...

A few weeks ago, some spammer in the Phillipines sent a spam
with an invalid address in the bluetree.ie domain.  (In fact, 
this guy is really persistent, since he's been using this
address since just before Christmas.  ISP is no help...)

Anyway, it seems that this guy get his hands on a mailing
list with a bunch of @home.com addresses.  After home.com
disappeared, of course.  So _every_ message from him to 
<user>@home.com bounced to us.

All 50000 of them.

And we've only got a 64k line :-(

Took almost 4 days.

Argh...

Later,
Kenn





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