Spammers Harnessing Web Mail Servers – Gmail & Yahoo! Throttled
It seems like spammers are now moving to automated spam via popular web mail services as a way to bypass IP-blacklisting services.
It’s a large advantage for them as they can still use botnet sources to generate the e-mail but the source IP address will be from a ‘trusted’ domain such as Gmail or Yahoo!.
The growing [...]


