SAN FRANCISCO--(BUSINESS WIRE)--Vade Retro, the leader in graymail management and email security, is pleased to announce that Cisco Systems has chosen Vade Retro’s graymail filtering technology – including email classification and safe unsubscribe – to further improve their email gateway’s ability to manage wanted and unwanted marketing email. Cisco Systems is the market leader for email security with its Email Security Appliance (Cisco ESA), formerly known as IronPort ESA. These appliances pro
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