[anti-spam-wg] Anti-sam method of Yahoo-Google

["Thu Thuy" thuthuy@localhost]

Hi, all folks,

 

Could anyone know about the methods and email defense system used by famous companies such as Yahoo, Gmail, AOL to prevent spam (i mean technical aspect).

 

I have to make a general report about spam. It is in our general effort to draw the attention of Vietnamese ISPs in the spam matter.

 

Thanks for your helps,

 

Thu Thuy

Vietnam Internet Network Information Center (VNNIC).