Spam costs U.S. companies US$712 per employee each year, says Nucleus Research. Spamhaus group wants to see Google do more to block spammers from using Gmail. Google’s spam-filtering service is based on the Postini technology Google acquired last year. The company says it would be worth $31,000 per year if you spent 16 seconds each on 21 spam messages per day, which adds up to about $70 billion per year in lost productivity.”]
Source: https://www.csoonline.com/article/2123475/how-much-does-spam-cost-you–google-will-calculate.html