"Since the shutdown of hosting company McColo in mid-November 2008, spam volumes have slowly made their way back to 'normal,'" wrote Symantec.

“自从于2008年11月中旬关闭了垃圾邮件宿主公司McColo后，已逐渐使垃圾邮件的数量回复正常”，赛门铁克写道。