Email & Threat Protection
Full-stack Exchange Online Protection and Microsoft Defender for Office 365 hardening — covering every email attack vector.
91%
of cyberattacks start with a phishing email
EOP + MDO
Full stack configured and hardened
ORCA 25+
Recommendations fully remediated
Exchange Online Protection (EOP)
Anti-spam policy hardening: confidence thresholds, bulk levels
Anti-malware with zero-hour auto-purge (ZAP) configuration
Quarantine policy and end-user notifications setup
Tenant Allow/Block list review and cleanup
SPF, DKIM, DMARC posture review and hardening all domains
Mailbox auditing enabled tenant-wide
MailTips for external and sensitive recipients
Restrict Outlook add-in installation by users
Block external calendar sharing & storage providers
Block users who exceeded message send limits
Defender for Office 365 P1/P2
Safe Attachments in block mode for all users and workloads
Safe Links with real-time URL detonation and click tracking
Anti-phishing: executive impersonation protection (CEO, CFO...)
Domain impersonation protection with quarantine enforcement
Phishing threshold set to level 2+ (aggressive detection)
Preset Standard/Strict security policies standardization
ORCA 25+ recommendations fully remediated
Attack Simulation Training (MDO P2 / E5)
Automated Investigation & Response / AIR (MDO P2)
Threat Explorer and Real-Time Detection reporting
Email Authentication — SPF / DKIM / DMARC
The three pillars of email authentication that prevent domain spoofing and impersonation.
SPF — Sender Policy
Review and correct SPF records for all domains including subdomain coverage. Prevent spoofing of your sending domains.
DKIM — Domain Keys
Enable and rotate DKIM for all M365 domains. Validate keys are published correctly with rotation scheduled.
DMARC — Enforcement
Deploy from p=none to p=quarantine to p=reject. Configure rua and ruf reporting for full visibility.
Harden Your Email Security
Get a free email security posture review and ORCA assessment.