doorcheck
Private beta v0.9 — limited seats

The power of your inbox, but untouchable.

Doorcheck catches the phishing, BEC, and vendor-compromise mail your filters wave through — and purges it from every inbox in seconds.

Get early accessExplore the platform
Live quarantine feedconsole.k9email.com · UTC
PHISH
Action required: your mailbox will be suspended
it-support@rnicrosoft-online.com
quarantined
BEC
Re: Wire instructions for Friday's closing
ceo.office@bastlon-corp.com
quarantined
VENDOR
Updated remittance details — invoice #8841
billing@trusted-supplier.co
purged ×31
PHISH
DocuSign: contract renewal awaiting signature
notify@docusign-mail.net
quarantined
PHISH
MFA reset requested for your account
security@okta-verify.support
purged ×12
Caught before anyone clickspurged in seconds
Plugs straight into
Microsoft 365Google WorkspaceSlackSplunkIMAP
Why Doorcheck

Impressive out of the box

The highlights that make Doorcheck feel like cheating — no security-team wiring, just protection.

◇
Built for the BEC age
Communication-graph AI catches impersonation and payload-less lures that signature filters were never built for.
⚡
Blazing fast response
Search any campaign across every mailbox and purge it in one click. Seconds from detection to an empty inbox.
◎
Protected in minutes
OAuth into Microsoft 365 or Google Workspace. API-based — no MX changes, no mail-flow risk, live before lunch.
⇌
Cross-tenant intel
Campaigns clustered across every Doorcheck tenant. When one org is hit, all are inoculated within minutes.
▣
Training that just works
Phishing simulations measure who clicks; just-in-time coaching goes only to those who do. Click rates fall fast.
✓
Analyst joy
Reported phish auto-triage themselves, posture is scored continuously, and every action lands in the audit log.
Where no phish has gone before

Zero reached an inbox.
That's the whole pitch.

Where it shines

Built for whoever's defending

One console, every team size. Here's where Doorcheck fits right in.

01
Lean IT teams
No SOC required. Verdicts, purges, and training run themselves — you review a digest, not a queue.
02
Security teams
Full campaign hunting, cross-tenant intel, and audit-grade logs that slot into your SIEM.
03
MSPs
Multi-tenant console with per-client policies. Protect every customer from one pane of glass.
04
Regulated orgs
Encrypted at rest, audit-grade logs, SSO sign-in — and a self-hosted deployment option when data must never leave.

Ready to launch?

Request a seat in the private beta. Early-access teams get white-glove onboarding and founding-customer pricing, locked for life.