Email Security For Office 365
Intelligent email protection software
Email security software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if Email Security For Office 365 and its alternatives fit your requirements.
Free Trial unavailableFree version unavailable
Small
Medium
Large
-
What is Email Security For Office 365
Email Security For Office 365 is a cloud email security service designed to protect Microsoft 365 mailboxes from phishing, malware, spam, and business email compromise. It typically sits in front of Exchange Online to filter inbound and outbound email and may include URL/file scanning, impersonation detection, and policy-based controls. The product targets organizations standardizing on Microsoft 365 that want additional security layers beyond native controls and centralized administration across tenants. Capabilities and deployment approach vary by vendor, but the core use case is reducing email-borne threats and improving email hygiene for Office 365 environments.
Microsoft 365-focused deployment
The product is purpose-built for Exchange Online and common Microsoft 365 mail flow patterns. This generally simplifies onboarding compared with generic gateways because it aligns with Microsoft 365 connectors, MX routing, and tenant administration. It also supports common operational needs such as quarantine workflows and admin reporting for Microsoft 365 users.
Layered threat filtering
It typically combines multiple controls such as anti-spam, anti-malware, URL rewriting/time-of-click checks, and attachment analysis. This layered approach helps address different email attack types, including credential phishing and malicious payload delivery. It also supports policy enforcement for inbound and outbound messages to reduce risky content and improve compliance posture.
Centralized policy management
Administrators can usually manage filtering rules, allow/deny lists, and user exceptions from a single console. This supports consistent enforcement across departments and domains and reduces reliance on per-mailbox configuration. Reporting and alerting features help security teams track blocked threats and tune policies over time.
Vendor identity is unclear
“Email Security For Office 365” is a generic product name used by multiple providers and resellers. Without a specific vendor, feature sets, certifications, data residency options, and support models cannot be verified. Procurement and risk review typically require the exact publisher, service terms, and documentation.
Potential mail flow complexity
Adding a third-party layer in front of Microsoft 365 can introduce additional DNS/MX changes, connectors, and routing dependencies. Misconfiguration can cause delivery delays, false positives, or issues with forwarding and shared mailboxes. Organizations may need extra operational effort to troubleshoot mail flow across Microsoft 365 and the security service.
Overlap with native controls
Microsoft 365 includes built-in email security capabilities, and some organizations may already license advanced Microsoft security features. A separate product can duplicate functionality, increasing cost and administrative overhead. Careful mapping of features is needed to avoid paying twice for similar protections and to define which system is authoritative for quarantine and policy decisions.
