hell, Microsoft's internal mail system was Xenix. The last remnants of Xenix weren't removed from Microsoft until the Tide servers came online - ITG ran a xenix

hell, Microsoft's internal mail system was Xenix. The last remnants of Xenix weren't removed from Microsoft until the Tide servers came online - ITG ran a xenix machine as a Usenet spool and telnet proxy until 96 or 97.