Inbound Email Security
Stop the Attacks Your Gateway Was Never Built to Catch
Inbound Email Security was built for the attacks gateways can't see — no payload, no prior signature, nothing for a rule to flag. Powered by Attune 1.0, it builds a behavioral baseline for every employee and vendor, then catches anything that deviates: novel BEC, AI-generated lures, and attacks that didn't exist yesterday. No rules or mail-flow changes required.
More threats detected than prior SEG in the first 90 days of deployment.
Accelleron (4,000+ mailboxes)
Abnormal uncovers an average of >1,200 attacks per 1,000 mailboxes each month that bypassed upstream gateways.
Abnormal internal data, June 2026
Average cost of a single successful BEC attack.
2024 Medius Financial Census, 2024
The Challenge
Advanced attacks have outrun the gateway
Why Abnormal
We Know Your Normal — So We Catch What Others Miss
Gateways see headers, content, and attachments. Abnormal sees the full behavioral picture of every identity.
We see what others can't
Gateways inspect inbound mail. Abnormal reads authentication events, calendar activity, and internal threads — signals no gateway can access.
Per-identity baselines, not generic threat profiles
Attune 1.0 builds a behavioral fingerprint for every employee and vendor — so attackers are measured against the real baseline, not a population average.
Precise enough to run on autopilot
Threats are removed before users engage. Every action includes which signals fired and which baseline was violated.
Built for the Modern Security Team
Detection, Remediation, and Investigation on Autopilot
Behavioral AI Detection
Analyzes identity, behavioral, and content signals per message to detect novel BEC, AI-generated lures, and payload-free attacks before they reach the inbox.
Attack Remediation
Automatically removes malicious messages from inboxes before users can interact with them, replacing manual triage with hands-free protection.
Threat Log
Every message Abnormal has evaluated, flagged, or actioned — in one view, filterable by threat type, time range, and verdict for fast investigation.
Detection 360
Turns every analyst-submitted miss and false positive into a tracked investigation with per-customer detection rules and full visibility into how submissions improve detection over time.
Search & Respond
Search across Microsoft 365 and Google Workspace simultaneously, view full message context, and remediate individually or in bulk from a single console.
Unified Quarantine
Review and release quarantined mail from Abnormal and Microsoft in one place — no bouncing between portals, no split workflows.
We Prove What Others Claim
Every vendor claims behavioral AI. There's one test that matters: can they show you the attacks your current solution is missing, right now, in your environment? Every Abnormal POV generates head-to-head miss data against the incumbent. If we find nothing, we'll say so.
Glass Box, Not Black Box
Every detection includes in-depth explanations — which signals fired, what the baseline was, why it's anomalous. Analysts validate verdicts without recreating the investigation.
Native Email Handles the Known. We Handle the Unknown.
Hundreds of attacks bypass native defenses per month on average. Abnormal + Microsoft/Google is the complete stack. Together they replace any SEG.
A Consolidation Play, Not a New Line Item
Most customers don't add budget — they reallocate it. Customers can save hundreds of thousands per year in SEG licensing, and free multiple FTEs from manual remediation.
Over 25% of the Fortune 500 Trust Abnormal AI to Make Automated, Critical Security Decisions
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Customer Voice
What Security Leaders Say
“Abnormal's automation gives our analysts time back to work on other projects, and the fact that it's API-based gives us flexibility to tie in other applications and their data.”
John Roeser
Senior Manager, Information Security, Domino's
“Our goals are to get away from being so reliant on human judgment and leverage AI to be proactive. Abnormal helps us with those goals.”
Corey Kaemming
Senior Director, Information Security, Valvoline
Abnormal powers over 4,500 customers, including over 25% of the Fortune 500.
FAQ
Related Resources
See What Your Gateway Is Missing
Deploy in 60 seconds via API. No MX changes. Start catching the attacks that cost the most.