Exchange Online (Plan 1)
Messaging, calendaring, and email archiving plan accessible from Outlook on PCs, the Web and mobile devices.
Secure and reliable business-class email with a 50 GB mailbox per user.
Exchange Online (Plan 2)
Best messaging and calendaring plan accessible from PCs, the Web and mobile devices with advanced archiving, compliance and integrated voicemail capabilities.
Includes all the features of Exchange Online Plan 1, plus unlimited storage, hosted voicemail, and data loss prevention.
Exchange Online Archiving for Exchange Server
A personal e-mail archive for users who have mailboxes on Exchange Server 2010 or later.
Exchange Online Kiosk
Basic messaging and calendaring plan with Web email and POP access.
Exchange Online Protection
Advanced anti-malware and anti-spam protection for email deployments.