Exchange Online Archiving for Exchange Online is a cloud-based, enterprise-class archiving solution for Office 365 Enterprise K1 and Exchange Online (Plan 1). This solution can assist your organization with archiving, compliance, regulatory, and e-discovery challenges.
 
key features:
Secure and Reliable Archive: It provides a secure and reliable archive with a 99.9% uptime2, storing all email correspondence in one secure location .
Large Archive Storage: Each subscriber is provided with 50 GB in their archive mailbox. Automatic addition of storage is available for select subscription plans.
In-Place Archive and Hold: Keep all your important data in one place with an In-Place Archive. Immutably preserve and hold user information for discovery at later dates with In-Place Hold.
Data Safeguards: Your data is safeguarded by hosting it in globally distributed data centers, with continuous data backup and premier disaster recovery capabilities.
Easy to Use: Works directly within the existing Microsoft email client, allowing users to view their own email archives without being able to edit or delete emails.
Anywhere Access: Consistent access to your information through Outlook and Outlook on the web.
Improved Performance: Helps users manage their archived email within their inbox, ending the need for locally kept .pst files.
Retention Policies: Helps users organize their information by enabling them to archive or delete items at their discretion.
This add-on adds auto-expanding archiving and In-Place Hold and Litigation Hold. It’s designed to meet the need for robust security, reliability, and user productivity.