The router cannot examine the mail headers and/or the mail
content, so in that regard it cannot block SPAM. If you know the
offending IP addresses, you could simply block inbound traffic from
those IP's, but this is a very crude approach.
Your best bet is to configure your mail server appropriately to block
as much unwanted email as possible. If your using sendmail,
check out www.sendmail.org for some anti-spam tips.
You can also report the offending mail server to your ISP and have
them blacklisted, check out www.abuse.net.
Finally, you can get software capable of filtering mail based on
headers, content, etc. There are lots on the market, for example
trend micro make a decent product: www.antivirus.com.
HTH,,
Kent
On 6 Mar 2001, at 11:15, Nuria Ca�amares wrote:
>
>
>
> Hi everybody:
>
> I don't think I have any chance but just in case there is any magic
> filter.... Is there any way to protect a mailserver ,that is connected
> to internet with a router, from a SPAM attack configuring the router
> somehow? If You know any related document please let me know.
>
> Thanks a lot,
>
> Hopeless Nuria
>
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