B2B Review LabSoftware research index

Catalog › Product profile

Microsoft Defender for Office 365 logo

Microsoft Defender for Office 365 Review 2026

Microsoft Defender for Office 365 adds Safe Links and Safe Attachments for M365 cloud mailboxes; Plan 2 offers a documented 90-day trial.

Verified

Facts at a glance

Starting price
Not documented
Free plan
Not documented
Free trial
Microsoft documents a 90-day Defender for Office 365 Plan 2 trial.
Last verified
2026-10-23

Key capabilities

Best Email Security Software 2026

Inbound email filteringMicrosoft documents Defender for Office 365 as its email and collaboration security solution for cloud mailboxes.
BEC and impersonation protectionNot documented
DMARC, SPF, and DKIM managementNot documented
Published starting priceNot documented

Best Email Investigation Software for Incident Response 2026

User phishing reports and triageNot documented
Investigation and message remediationMicrosoft Learn lists investigation and response guidance for Defender for Office 365.
Mail platform integrationsMicrosoft identifies Defender for Office 365 as the email and collaboration security solution for Microsoft 365 cloud mailboxes.

Best Email Security Software for Microsoft 365 2026

Phishing, URL, and attachment protectionMicrosoft names Safe Links and Safe Attachments as Defender for Office 365 features.

Appears in these comparisons

Consider instead

  • IRONSCALES Email Security — Shares 4 shortlists; ranked above Microsoft Defender for Office 365 on Best Email Security Software 2026
  • Check Point Harmony Email & Collaboration — Shares 4 shortlists; ranked above Microsoft Defender for Office 365 on Best Email Security Software 2026
  • TitanHQ SpamTitan — Shares 4 shortlists; ranked above Microsoft Defender for Office 365 on Best Email Security Software for Small Businesses 2026

Change log

  • 23 October 2026 — Checked 14 facts including Starting price, Free plan, Free trial, Price published

Visit product website