Research results released by Nucleus Research suggest that spam costs $712 in worker productivity per employee, per year. The study found that business email users typically receive 21 spam messages in their inboxes per day. Workers spend 16 seconds identifying and deleting each spam message, which translates into an annual cost of $70 Billion to US Businesses.

Bear in mind that this number only reflects lost productivity, and does not take into account the cost of anti-spam solutions employed by businesses. Although, a ” solution” that lets more than zero to five spam messages into a user’s inbox per day is really no solution at all.

How many spam messages do your users receive per day? How many spam messages do you block?