Microsoft Exchange Online Protection (EOP) is a cloud-based email filtering service that helps protect your organization against spam and malware, and includes features to safeguard your organization from messaging-policy violations. EOP can simplify the management of your messaging environment and alleviate many of the burdens that come with maintaining on-premises hardware and software.
The following are the primary ways you can use EOP for messaging protection:
- In a standalone scenario EOP provides cloud-based email protection for your on-premises Microsoft Exchange Server 2013 environment, legacy Exchange Server versions, or for any other on-premises SMTP email solution.
- As a part of Microsoft Exchange Online By default, EOP protects Microsoft Exchange Online cloud-hosted mailboxes.
- In a hybrid deployment EOP can be configured to protect your messaging environment and control mail routing when you have a mix of on-premises and cloud mailboxes.