Sendmail: How does one blacklist annoying spammers?

[JD]

On 06/25/2010 04:58 PM, Tom Horsley was caught red-handed while writing::
> On Fri, 25 Jun 2010 15:24:09 -0700
> Daniel B. Thurman wrote:
>
>    
>> But... at what cost?
>>
>> You want google hold your messages and do whatever
>> they deem fit with it?
>>      
> Why shucks! Their company slogan is "Don't be evil",
> surely we can trust them (or was it "To Serve Man", I forget).
> And now they'll hold all your voicemail for you for free
> with the new google voice service, and track your
> position for free by following your android phone,
> and backup all your files for free through your unsecured
> wi-fi access point. Golly! How could anyone be
> paranoid about such a wonderful company...
> (Anyone remember the movie "The President's Analyst" :-)
>    
Did not google's founder expose a Chinese dissident's
identity to China's government and the executed him?