Always-On Email Security

Meet your security analyst.

Spoof Defense investigates every email, catches threats others miss, and never blocks a real message. Like hiring a security analyst who never takes a day off.

Zero legitimate emails blockedSetup in minutesNo security team required

Start Free Trial See How It Works

Works with Microsoft 365 and Google Workspace. Deploys in minutes. No hardware.

Zero

Real emails blocked

10 min

Setup time

24/7

Always investigating

How Spoof Defense Works for You

Protection that gets smarter every day

Spoof Defense investigates threats, learns who your business trusts, and explains every decision in plain English.

Never Lose a Real Email

Other filters block legitimate emails to catch more threats. Spoof Defense blocks zero real emails — contracts, invoices, and vendor messages always get through.

Stop Invoice & Payment Fraud

Detects executive impersonation, vendor payment change requests, and sophisticated invoice fraud — the attacks that cause real financial damage.

Know Why, Not Just What

Every flagged email comes with a plain-English explanation your team can understand in seconds. No security expertise required.

Learns Who You Trust

Spoof Defense builds a trust profile unique to your business. Fewer false alarms over time — and if a trusted sender starts behaving differently, it notices.

Challenges Its Own Decisions

Before taking action, Spoof Defense asks: "Could this be legitimate?" Real emails are flagged for review, never blocked. Your team always has the final say.

Set Up in Minutes

Connect Microsoft 365 or Google Workspace. Start protecting your team immediately. No DNS changes, no hardware, no IT team required.

Why Spoof Defense Is Different

Most email security products make a split-second decision: block or allow. Spoof Defense works differently.

When a suspicious email arrives, Spoof Defense investigates — checking the sender's identity, the domain's history, the content's intent, and whether the links lead where they claim. If something doesn't add up, it explains the risk in language anyone can understand.

Before taking action, it challenges its own conclusion: “Could this actually be legitimate?” If there's a reasonable chance the email is real, it flags it for review instead of blocking it. Your team always makes the final call.

Over time, Spoof Defense learns who your business trusts — your vendors, partners, and colleagues. It stops flagging routine emails and focuses on genuinely new risks. And if a trusted sender starts behaving differently — new payment instructions, unusual urgency — it notices.

No rules to write. No allow-lists to maintain. No security team required.

How It Works

Protected in three simple steps

No IT team needed. No training required. No complicated setup.

Connect Your Email

Setup takes under 10 minutes
No DNS changes or hardware to install
Spoof Defense starts working immediately

Every Email Investigated

Every email is investigated — not just filtered.

Checks sender identity, intent, and trust
Catches impersonation, fraud, and AI-generated phishing
Challenges its own verdict before taking action
Real emails always get through — zero false positives

You Stay in Control

Suspicious emails are flagged with a clear explanation.

Plain English — your team understands instantly
Emails are labeled, never silently deleted
Spoof Defense learns your business and adapts over time

Already using Proofpoint or Mimecast?

SpoofDefense isn’t a replacement — it’s an additional layer that catches the sophisticated attacks that still get through, or that are detected after a damaging delay.

Microsoft 365 Google Workspace Proofpoint Mimecast

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