Spam coming from free email providers increasing

Posted by Dancho Danchev @ 1:16 pm between June 13 to July 3, 2008, Roaring Penguin Software Inc. found evidence that spam originating from the top three fre email providers (Gmail, Yahoo Mail and Hotmail) is increasing, with spammers in favor of abusing Gmail’s privacy preserving feature of not including the sender’s original IP in outgoing emails : “Spammers are increasingly using free e-mail providers to avoid IP address-based reputation systems. These systems track mail sent by various IP addresses and assign each IP address a rating. Some anti-spam software operates largely or exclusively on the basis of the IP address rating. Roaring Penguin’s data shows that over the three weeks from June 13 to July 3, 2008, the percentage of US-originated spam originating from the top 3 free e-mail providers (Yahoo, Google and... [read full story]