Celestix MSA Security Appliances provide unique levels of protection for OWA Web sites.

With the easy-to-use interface of Celestix MSA Security Appliances, organisations can quickly set up a Web publishing rule that enforces secure forms-based authentication. Celestix MSA Security Appliances also stop attacks against e-mail servers, both through Secure Sockets Layer (SSL) decryption, which enables SSL traffic to be inspected for malicious code, and through HTTP filtering, which provides deep inspection of application content. In addition, Celestix MSA Security Appliances uses preauthentication to prevent anonymous user logins, a key attack vector aimed at internal servers.

Celestix MSA Security Appliances leverage existing multifactor authentication, providing authentication whether the remote mail scenarios use Remote Authentication Dial-In User Service (RADIUS) or RSA SecurID. In this way, Celestix MSA Security Appliances help you prevent potentially dangerous anonymous requests from reaching Microsoft Exchange Server. Further protection comes from the attachment-blocking and session time-out capabilities of Celestix MSA Security Appliance, which prevent users' e-mail sessions from being left open indefinitely for others to use.

Figure 1 illustrates how Celestix MSA Security Appliances help secure e-mail access for employees outside the corporate network