Cloudmark provides carrier-grade messaging security and infrastructure solutions for the world’s most demanding fixed, mobile and social networks. In just 60 seconds a single spam run can drop more than one million messages into a mailbox provider’s network. To protect their account holders from email abuse like this, more than 120 of the world’s largest mailbox providers including AT&T, Comcast, Cox Communications, and Verizon turn to intelligent network security solutions from Cloudmark. Return Path is proud to play a critical role in this mission as a partner with Cloudmark, providing whitelisting and blacklisting solutions and critical threat intelligence data. Our collaboration helps to protect consumers around the world from spam and phishing attacks while ensuring that the messages they want reach the inbox.