An advanced spamming technique could push the volume of unwanted e-mail to new heights in coming months, straining the integrity of the online communication system, according to several top experts who monitor the activity of spam gangs around the world.

Illegal bulk-mailers have been able to deploy massive blasts of spam by routing it through the computers of their Internet service providers, rather than sending it directly from individual machines, the experts said.

The result is that "blacklists" of known spamming computers -- which other network operators rely upon to block mail from those machines -- are no longer effective. To block spam coming directly from an ISP's computers, all mail from that ISP would be have to be blocked, which would cripple electronic communication. Read on at Yahoo News