Re: [cobalt-users] Stopping SPAM Relaying via My Mail Server?

[Ryan Verner <xfesty@xxxxxxxxxxxxxxxxxxxxxxxxx>]

On 28/01/2004, at 11:11 AM, Dan Kriwitsky wrote:
> Depends on how it's being sent. Maybe you have an old FormMail.pl/cgi
> file being exploited.
> Do you have control over all the sites on your server? Maybe someone on
> the server is a spammer.

Determining this is of upmost importance; work it out today, don't 
wait.  Black lists can be the death of you - I remember some years ago, 
the colo company we were using had spammers in an IP block only a few 
numbers up from us, and ignored one email asking them to do something 
about it.  Bam, their entire class C ended up in a black list, and 
propagated to others.

No matter how many emails they/we sent, the block wouldn't be removed 
out.  My ability to email from my domains colocated on the machine was 
completely crippled and I lost some rather large contracts due to it - 
not happy.  The colo facility ended up having to get an entire new 
block in and assign that to their customers, but by then, we and other 
clients had moved elsewhere.

Treat spammers with extreme prejudice.  They can be far more painful 
than just an annoyance.

R

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