Reject emails to nonexistent addresses?

[Raymond Dijkxhoorn]

Hi!

> We're getting tons of spam directed at addresses that neither exist, nor
> ever exist. I'm not sure of the spammers' motivation here...are they
> hoping to simply spam the "catch-all" account, if it exists? Is there an
> easy way of somehow rejecting emails destined to nonexistent addresses
> before they are processed by MailScanner?
>
> We're running Fedora Linux, Sendmail, Procmail, and of course MailScanner.

How does a spammer know its a nonexistent addresses? They dont, so they
beam up anything they can. To stop this, you can for example use ldap on
your frontend servers and do real time checks with your MTA on your
userbase.

Bye,
Raymond

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