Spammers hapless fate = ISP toil and sweat

>>   The next solution was to block packets coming from those addresses
>> to port 25 of any machine on our network.
>
>That's what we're doing now.  Since our router can throw away packets
>
>>  This has worked wonders. We still receive unsolicited email, but no more
>> heavy duty spams.
>
>I haven't seen much since we started blocking certain IP-blocks in USA.
>It was _not_ CyberPromo, since we've been blocking them for several months.
>

  Remember, what has worked wonders was not blocking IP addresses totally
 and 24 hours a day at the routers but blocking them intermitently at the mail
 machine.

  C U!

  -- Mario Valente