International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Last year the design and implementation of a secure World Wide Web based data sharing tool which could enable geographically remote contractor teams to access flight and test telemetry data securely over the Internet was presented [1]. Key technologies facilitating this capability were the Hypertext Transfer Protocol (HTTP) and the Secure Sockets Layer (SSL) capable web browsers and web servers. This year the applicability of the Secure Multipurpose Internet Mail Extension (S/MIME) specification is being evaluated for the transport of telemetry data via secure E-mail.