MICROSOFT Microsoft Exchange Hosted Standard SAL - Licence & software assurance - 1 subscriber (SAL) - SPLA - Win - All Languages F08-00025
MICROSOFT Microsoft Exchange Hosted Standard SAL - Licence & software assurance - hosted - SPLA - requires MS SA - Win - All Languages F08-00027
MICROSOFT Microsoft Exchange Basic - Licence & software assurance - commercial - SPLA - administrative fee - All Languages F93-00038