Email is an integral part of the enterprise DNA, used for making business decisions minute by minute on a worldwide basis. Microsoft Exchange and Microsoft Outlook is the most widely deployed email server application. As more and more enterprise employees work remotely, from home offices or from mobile locations, the need for reliable and secure email access is growing.

To enable remote access, many companies have deployed Virtual Private Networks (VPN) which add an additional layer of complexity to network security, are often unstable, and require installation and maintenance of VPN clients on remote users’ computers. Some enterprises have deployed SSL VPNs which do not require installing or maintaining clients, but still require an additional network layer. An alternative to VPN or SSL VPNs, that leverages an enterprises’ existing Exchange environment is Microsoft® Outlook Web

Access (OWA). With OWA, enterprises have the option to deploy a Web-based version of Outlook that can be accessed from any machine with a web browser. However, while OWA addresses the complexity of remote access, it still relies on single-factor authentication - username and password - for secure logon. Adding VeriSign Unified Authentication and the VeriSign One-Time Password (OTP) token to an OWA deployment provides a secure, second-factor of authentication to your remote email application, while easing complexity at the network level and providing ease of use for remote users.

VeriSign® Unified Authentication reduces the complexity and cost of strong authentication by providing a single, highly scalable platform for managing all types of two-factor authentication credentials. The VeriSign One-Time Password Token enables strong authentication through an easy-to-use and highly cost effective token that complies with the OATH standard and comes with a full warranty.

Download pdf Securing Microsoft ® Outlook Web Access with VeriSign Unified Authentication