MIME type name: application MIME subtype name: andrew-inset Required parameters: NONE Optional parameters: NONE Encoding considerations: None required. The Andrew data stream was designed to be 7-bit SMTP safe. Security considerations: The Andrew data stream is open-ended in the sense that it can be expanded by the definition of new "insets". If care is not taken in the definition of such insets and their data stream, it might be possible to send "Trojan horses" through the mail. Andrew users should bear this in mind when they install new insets, and should be wary of installing insets from unreliable sources. Insets cannot be installed via mail, however, so as long as care is taken in the installation of insets, nothing that comes through the mail can cause a security problem. Published specification: "Multimedia Applications Development with the Andrew Toolkit", by Nathaniel S. Borenstein, Prentice Hall, 1990. Person & email address to contact for further information: Nathaniel Borenstein