Microsoft Exchange Online delivers secure, business-class email, calendar, and contacts hosted by Microsoft. Plan 1 provides a 50 GB mailbox per user, Outlook access on desktop, web, and mobile, and built-in anti-malware and anti-spam protection via Exchange Online Protection. Users benefit from shared calendars, focused inbox, and Outlook on the web for anywhere productivity. Data is stored in Microsoft’s globally distributed, compliant cloud with geo-redundant infrastructure and 99.9% financially backed uptime SLA. Administrators can manage policies, remote wipe for mobile devices, and in-place archive to help keep inboxes organized. Integration with Microsoft 365 enables seamless collaboration and directory management while maintaining enterprise-grade security and privacy controls.