McAfee Network Data Loss Prevention (DLP) Prevent enforces policies for information leaving the network through email, webmail, Instant Messaging, wikis, blogs, portals, HTTP/HTTPS, and FTP transfers by integrating with Message Transfer Agent (MTA) gateways using Simple Mail Transfer Protocol (SMTP) or ICAP-compliant web proxies. Upon encountering a policy violation, McAfee Network DLP Prevent allows you to take a variety of actions, including applying encryption, blocking, redirecting, quarantining and more - so you can ensure compliance with regulations governing the privacy of sensitive information and reduce the risk of security threats.