A cloud-based, enterprise-class archiving solution Solve archiving, compliance, regulatory, and eDiscovery challenges. Hosted on Microsoft globally redundant servers, with IT-level phone support 24 hours a day, seven days a week, Exchange Online Archiving is compatible with Exchange Server 2019, 2016, 2013, and 2010. It’s also available as an add-on service for mailboxes that are hosted online.