15 Best Practices for Protecting Your Email with Security Gateway vs Abnormal AI Security Mailbox: Side-by-Side Comparison (2026)

15 Best Practices for Protecting Your Email with Security Gateway

Security leaders evaluating email gateway deployments for the first time will find actual tactical value here instead of vendor marketing; this guide cuts through the noise by naming which controls stop phishing versus which are theater. The 15 practices map directly to NIST CSF 2.0 Protect functions, with emphasis on authentication and filtering configurations that measurably reduce compromise. Skip this if your team already runs a mature email security program with established policies; the guide targets organizations still building foundational email defenses.

Abnormal AI Security Mailbox

Mid-market and enterprise security teams drowning in user-reported phishing will see immediate ROI from Abnormal AI Security Mailbox because its autonomous triage actually closes the investigate-to-remediate loop instead of just flagging threats. The platform covers DE.CM through RS.MA in the NIST CSF, meaning it doesn't just detect anomalies; it analyzes them and executes bulk remediation across mailboxes without manual intervention. Skip this if your organization treats email security as a checkbox behind a gateway tool; Abnormal assumes you're running a real SOC function and builds accordingly.