This document provides a compatibility matrix for the Bloombase Spitfire Messaging Security Server, showing which operating systems, software platforms, and cryptographic algorithms are supported. Many versions of Linux, Solaris, AIX, HP-UX, FreeBSD, and Windows are fully supported. Cryptographic algorithms including AES, DES, RSA, and SHA-1 are supported. The server can operate in gateway mode to encrypt email or in agent mode for application integration.