This Cisco ESA-C170-K9 IronPort C170 eMail Security Appliance is the perfect solution for any business looking to secure their email communications. With its powerful VPN firewall capabilities, your network will be protected from any external threats. This device is specifically designed to handle email communications and ensures that all incoming and outgoing emails are secure. Its format of E-Mail makes it easy to integrate into any existing email system. This model is highly recommended for businesses that deal with sensitive information.