Why it ranks here: API-first teams protecting Google Workspace and Microsoft 365 get Material Security’s deployed investigation and remediation workflow.
Not a fit if: you need domain-only sender authentication for API-based response; Material Security provides inbound email filtering.
Why it ranks here: Security teams adding account-takeover response can pair Barracuda New Incident Response with its protection portfolio.
Not a fit if: you need domain-only sender authentication for an account-takeover response project; Barracuda Email Protection provides inbound email filtering.
Why it ranks here: SOC analysts needing AI link and attachment analysis get Check Point ThreatCloud AI, deployed without MX changes.
Not a fit if: you need domain-only sender authentication for malicious links; Check Point Harmony Email & Collaboration provides inbound email filtering.
Starting price
Not documented
Free plan
Not documented
Free trial
Check Point offers a free trial for Harmony Email & Collaboration.
Why it ranks here: Spam administrators needing searchable review get SpamTitan quarantine alongside phishing defense.
Not a fit if: you need domain-only sender authentication for quarantine search; TitanHQ SpamTitan provides inbound email filtering.
Starting price
Not documented
Free plan
Not documented
Free trial
TitanHQ says buyers can contact it to start a free trial of the latest SpamTitan version.
User phishing reports and triage
Not documented.
Investigation and message remediation
Searchable spam quarantine
Mail platform integrations
Microsoft 365, Active Directory, LDAP
Best Email Investigation Software for Incident Response 2026 helps security teams reviewing reported phishing or mailbox threats compare products on the facts vendors document. Start with the first choice for the page's job, then check its deployment and plan limits before shortlisting.
The order uses the page-specific evidence basis below; unknown platform, price, and response details remain marked as not documented. Read the Abnormal Email Security review for the product workflow and continue to the email security directory.
How we assessed this shortlist
Eligibility requires known user-report triage, investigation, or message remediation and at least three known category facts. Automated report handling and mailbox removal rank first, followed by post-delivery clawback and cross-tenant response; retrospective scanning and quarantine follow those response tiers. Within each tier, compare recipient/message workflow, platform scope, and published price transparency. Thin evidence stays below the top five.
Compare the deciding features
Category-specific workflows and plan requirements
Best Email Investigation Software for Incident Response 2026: documented features
FortiMail documents real-time scanning and clawback for cloud email services and integrations that automate security workflows, including response.[6][6]
FortiMail documents security for Microsoft 365 and Google Workspace, including Exchange Online clawback.[6][6]
Check Point says ThreatCloud AI analyzes intent, behavior, identity, content, and threat intelligence to investigate and prevent sophisticated attacks.[14]
Check Point names Microsoft 365 and Google Workspace as supported email and collaboration environments.[14]
Automated triage of user-reported phishing. AI Security Mailbox analyzes the report, applies the same behavioral models, responds to the user, and remediates the threat without analyst involvement.
Material’s inbound email security catches what Google, Microsoft, and legacy SEG providers miss, detecting and remediating even the most sophisticated attacks, plus fully automated user report triage.
Check Point's prevention-first architecture uses ThreatCloud AI to inspect every message and stop phishing, business email compromise, malware, and zero-day attacks before users or AI agents can interact with them. ThreatCloud AI analyzes behavior, identity, language, attachments, links, and threat intelligence to stop sophisticated attacks before they reach users or AI systems.
Effortlessly block and isolate phishing threats, including email-borne malware, business email compromise (BEC), and multi-channel (link-based) attacks — before they reach your users.
Use Retro Scan to check whether your current email security provider has missed any threats. Cloudflare scans up to 14 days of emails in your Microsoft 365 mailbox and generates a report of malicious messages.
Cloudflare Email Security uses AI, threat intelligence, and security rules to analyze every incoming email, protecting your organization from phishing, malware, Business Email Compromise (where attackers impersonate executives or authority figures to commit fraud), vendor email fraud, and spam. It integrates with your existing email provider (such as Outlook or Gmail) and can be deployed via API, BCC / Journaling, or MX/Inline.
Although all organizations with cloud mailboxes include built-in security features, Microsoft Defender for Office 365 is the primary email and collaboration security solution for Microsoft 365.
Microsoft Defender for Office 365 documentation Learn about the robust security solutions in Defender for Office 365 to better protect your email and collaboration tools. Microsoft Defender for Office 365 Overview Investigate and respond
