Spammers are continuing to stay one step ahead of the antispam community as a recent innovation makes blacklists – where e-mails from suspicious sources are blocked -- virtually useless.

On Thursday, anti-spam organisation SpamHaus, which compiles blacklists that block around eight billion e-mail messages a day, reported that spammers have started sending spam via the mail server of an infected PC's Internet service provider. This means the spam appears to come from the ISP, making it very hard for an anti-spam blacklist to block. Previously, compromised or zombie PCs have been used as mail servers to send spam e-mails directly.

Blacklists rendered useless as spammers leap ahead Posted by: DTB at 8:59 AM  |  Permalink