Best Microsoft 365 Email Security

Pack status: draft. Claim slots: 7 verified, 0 conflicted, 0 missing. Pricing status: quote_only. Commercial status: application_pending. Editorial score: N/Pub. Score gate ready: no.

Pack status: draft. Claim slots: 5 verified, 0 conflicted, 3 missing. Pricing status: public. Commercial status: editorial_only. Editorial score: N/Pub. Score gate ready: no.

Pack status: draft. Claim slots: 6 verified, 0 conflicted, 0 missing. Pricing status: public. Commercial status: application_pending. Editorial score: N/Pub. Score gate ready: no.

Abnormal Security · abnormal:product-scope

Abnormal positions a Behavioral Security Platform with Email Security to stop BEC, phishing, and account takeover, plus related Identity Security, AI Security, and Insider Threat capabilities; homepage emphasizes cloud-native API architecture that activates without agents or MX changes.

Source (official, accessed 2026-08-09): https://abnormal.ai/

• Add-on modules beyond inbound email security may require separate purchase; SecurityChecklist has not independently tested Abnormal.

Abnormal Security · abnormal:admin-identity

Abnormal's December 2021 product security blog, in the portal session-security section, states that Abnormal supports Okta for both SSO and MFA, and describes expanded role-based access controls that let customers restrict access to specific tenants and administrative functions by assigned roles and permissions.

Source (official, accessed 2026-08-10): https://abnormal.ai/blog/commitment-security-privacy

• Blog dated December 2021; re-check before publication that Okta SSO/MFA remains current for the commercial portal SKU.
• No public step-by-step IdP configuration guide; support Knowledge articles for SSO/SAML/SCIM remain login-walled.
• Public SCIM console provisioning documentation was not found; do not claim SCIM from this slot.

Abnormal Security · abnormal:admin-identity

Abnormal What's New (5 Feb 2026) documents role-based access control for platform integrations, extending existing portal RBAC so customers can grant full or no access and scope privileges organization-wide or per tenant for who can view and manage third-party integrations.

Source (official, accessed 2026-08-10): https://abnormal.ai/platform/whats-new/platform-integrations-rbac

• Documents RBAC admin controls for integrations; does not by itself document SAML/SCIM IdP setup steps.

Abnormal Security · abnormal:pricing-transparency

Abnormal homepage and trust surfaces route commercial buyers to See It in Action / demo engagement rather than publishing a self-serve public rate card; pricing treated as quote-only as of this check.

Source (official, accessed 2026-08-09): https://abnormal.ai/

• Third-party proposal or marketplace unit prices are not treated as Abnormal official list pricing.

KnowBe4 · knowbe4:product-scope

KnowBe4 AI-Native Security Awareness Training combines training content in 35+ languages, AI-generated phishing and vishing simulations, Real-Time Coaching, and SmartRisk analytics for continuous human-risk reduction.

Source (official, accessed 2026-08-09): https://www.knowbe4.com/products

• Vendor product marketing; add-ons such as PhishER Plus are separate SKUs.

KnowBe4 · knowbe4:pricing-transparency

KnowBe4 publishes MSRP USD monthly pricing per seat on a 3-year term; SAT Foundation for 25-50 seats is listed at $2.40 USD per seat per month (pricing as per May 2026 on vendor page).

Source (official, accessed 2026-08-09): https://www.knowbe4.com/pricing

• List pricing may vary by region; taxes and discounts not included.
• Re-check before publication; vendor pricing is volatile.

Microsoft Defender for Business · microsoft-defender-business:product-scope

Microsoft Defender for Business is an AI-powered, enterprise-grade device security solution for businesses with up to 300 employees, covering Windows, macOS, iOS, and Android devices with next-generation antivirus, vulnerability management, EDR, and automated investigation and remediation.

Source (official, accessed 2026-08-09): https://www.microsoft.com/en-us/security/business/endpoint-security/microsoft-defender-business

• Vendor product page; standalone SKU is endpoint and device security only.
• Fixture lists email-security category; email protection requires Microsoft 365 Business Premium bundle (Defender for Office 365 P1), not standalone Defender for Business alone.

Microsoft Defender for Business · microsoft-defender-business:product-scope

Standalone Microsoft Defender for Business does not include email protection; Microsoft 365 Business Premium bundle adds email protection from phishing attacks with Microsoft Defender for Office 365 P1 alongside Defender for Business.

Source (official, accessed 2026-08-09): https://www.microsoft.com/en-us/security/business/endpoint-security/microsoft-defender-business

• Email-security scope in vendor fixture applies to bundled Microsoft 365 Business Premium, not the $3.00 standalone SKU.
• Business Premium listed at $22.00 USD per user per month paid yearly on the same page; re-check before publication.

Microsoft Defender for Business · microsoft-defender-business:product-scope

Defender for Business supports up to 300 users and up to five devices per user with no minimum device requirement per the standalone plan listing.

Source (official, accessed 2026-08-09): https://www.microsoft.com/en-us/security/business/endpoint-security/microsoft-defender-business

• Device and user limits apply to the standalone SKU; bundled Microsoft 365 plans may differ.

Microsoft Defender for Business · microsoft-defender-business:pricing-transparency

Standalone Microsoft Defender for Business is listed at $3.00 USD per user per month when paid yearly; price does not include tax.

Source (official, accessed 2026-08-09): https://www.microsoft.com/en-us/security/business/endpoint-security/microsoft-defender-business

• US pricing page; geo-specific pricing may differ.
• Annual subscription auto-renews per vendor terms; re-check before publication.