All the features of Exchange Online Plan 1, plus unlimited storage, hosted voicemail, and data loss protection.
Use In-Place Hold to preserve deleted and edited mailbox items from users' primary mailboxes and In-Place Archives.
Take advantage of unlimited storage (100 GB of storage in the user's primary mailbox, plus unlimited storage in the user's In-Place Archive).
Take advantage of hosted Unified Messaging services that provide call answering, a dial-in user interface, and company automated attendant capabilities.
Data loss prevention (DLP)
Control sensitive business data with built-in DLP policies based on regulatory standards such as PII and PCI, which help to identify, monitor, and protect sensitive data through deep content analysis.