ietf-asrg
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Re: [Asrg] Lets Fix Mailing Lists

2003-03-09 17:56:45
Erez Zadok <ezk(_at_)cs(_dot_)sunysb(_dot_)edu> wrote:
My own experience is also that the vast majority of spam comes from forged
addresses that don't exist.

  Like the 100,000 fake addresses at my domain.  The annoying
"notifications" to "abuse@" about spam from my domain went away only
when I gave up, and firewalled port 25 for everyone but a tiny
whitelist.

  Before that, I had weekly fights with anti-spam people, who didn't
want to understand that most headers were forged.  Their experience
may have been different than mine, but it was a source of great
frustration that they refused to believe my experience.

  It's not just a few domains, either.  Look at the reports on this
list of people re-activating domains after 3 years, and immediately
receiving 10K or 100K spams.  There is *no* way that any legitimate
business would be sending that much mail to addresses which don't
exist, and *never* clean out bounces.

  Alan DeKok.
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