The use of client-side email security appliances has made the click rate harder to interpret correctly. These appliances are typically installed into a client’s email server. The purpose of the security appliance is to verify that all emails received are legitimate and safe to pass on to the recipients. The challenge is that over the past year, Acoustic has noticed a significant increase in the rate of links which have been followed (invoked) by email security appliances.

Tim Francis

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Five email icons with a person selecting one in the center. 

The Bot Click Challenge

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