content: Ultimately there are huge swaths of business that still need the feature/functionality of exchange (and by extension outlook) some of the examples we run across are   Medical, where email encryption is necessary as well as archiving (in the case of medical records) Financial, where independent journaling is necessary Business integration features (example phone system integration, it is common for phone systems to use exchange as a voicemail repository I3 and Cisco's solution does so CRM integration, i  7ff2  ts still one of the better integrator for sales tools  High availability configurations, unlike many other mail systems exchange supports a wide array of deployment methodologies including replication and HA configurations with the above busniess needs the criticality of mail availability is increasing not decreasing.