Standalone Exchange Online Protection | Microsoft Docs
docs.microsoft.com › en-us › exchangeAug 20, 2021 · Exchange Online Protection (EOP) is the cloud-based filtering service that helps protect your organization against spam and malware. EOP is included in all Microsoft 365 organizations with Exchange Online mailboxes. For more information, see Exchange Online Protection overview. However, EOP is also available in the following on-premises scenarios: