Free check: can criminals send email as your domain?

Stop email scams.Back up every mailbox.Train your people.

One managed service for Microsoft 365 and Google Workspace: phishing and fraud filtered before the inbox, an independent backup you can restore from, and a 20-course security academy (safe phishing simulations coming soon).

From $3.50 per mailbox / month 14-day free trial · no setup fee · cancel any time

Start free trial Try the live demo

Incoming

Harbour Supplies Accounts[email protected]

Invoice 4471: our bank details have changed

KnoxDefender gateway86

Sender imitates harbour-supplies.example
Asks to change payment details
Reply-to differs from sender
No malware in attachments

Inboxdelivered

Quarantineheld with reasons

HELD

Lookalike domains
Payment-change requests
Display-name impersonation
Reply-to mismatches
Malware attachments
Macro documents
Links to raw IP addresses
Shortened links
Punycode domains
Forged Authentication-Results
Hidden forwarding rules
New mailbox delegates
Apps granted mail access
Domain spoofing (DMARC)

Three axes of protection

Recover it. Block it. Teach it.

Plans stack: each one includes everything in the plan before it, plus the next axis. Every feature, with its status →

Backup & Recovery

Never lose an email again.

Daily encrypted backups outside Microsoft and Google
Restore a message, folder or mailbox, approved by an admin
Monthly restore tests prove it works

In provider verification From $3.50/mailbox/mo

Email Security

Stop the scam before the inbox.

Filtering gateway: lookalikes, payment fraud, malware held
Each person reviews their own quarantine
SPF, DKIM and DMARC done right

Live · parts in verification From $6.50/mailbox/mo

Awareness

Turn your people into the last line of defense.

20 short courses in 4 levels, with quizzes and achievement cards
Safe phishing simulations (invented brands, no data collected; switching on soon)
Automatic reminders and follow-up lessons

Available now From $9.00/mailbox/mo

Free · 10 seconds