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Email security gateway · 3M+ emails filtered/month

Your inbox,
threat-free.

Clean Mailbox filters every incoming email before it reaches your server — blocking spam, malware, phishing and ransomware in real-time.

Start 30-day free trial See how it works Watch the presentation video
90+Clients
35 000+Protected mailboxes
3M+Emails/month
manager.clean-mailbox.com · Statistics
BLOCKED ransomware attachment detected · Trojan.GenericKD
BLOCKED phishing attempt · fake PayPal login page
DELIVERED 1,842 clean emails today
BLOCKED DKIM spoofing · impersonated domain detected
BLOCKED executable attachment · .exe in .zip archive
DELIVERED 98.2% clean score this week
BLOCKED ransomware attachment detected · Trojan.GenericKD
BLOCKED phishing attempt · fake PayPal login page
DELIVERED 1,842 clean emails today
BLOCKED DKIM spoofing · impersonated domain detected
BLOCKED executable attachment · .exe in .zip archive
DELIVERED 98.2% clean score this week

Every threat, stopped at the door.

Works with any SMTP server — self-hosted or managed (Google, Microsoft, OVH, Gandi, Infomaniak, ...)

Anti-Virus

Cloud-based signature scanning blocks viruses, trojans and ransomware before they reach your users' inboxes.

Anti-Spam

Real-time detection engine eliminates unwanted emails and mass-mailings. Continuously updated scoring rules.

Anti-Phishing

Emails mimicking known brands are caught by visual fingerprinting and link reputation analysis.

Content Filtering

Define your own attachment rules. Block EXE, ZIP, macros — or any file type you choose. Total control.

Sender Authentication

Apply custom policies for SPF, DKIM and DMARC failures. Stop spoofing and domain impersonation.

Challenge (CAPTCHA)

First-time senders prove they're human before their email is delivered. Effective against bots, zero friction for real contacts.

Yara rules Beta

Write your own Yara rules to inspect incoming emails and tag or block them. You define the detection logic.

AI rules Beta

Describe in plain language when to tag or block an email: no syntax, no code. Our AI applies your rule.

Custom API Beta

We send every incoming email to an API you host, and it decides the action. Full control over your detection logic.

Up and running in minutes.

No hardware. No software. Just a DNS change.

1

Point your MX records

Update your domain's MX record to route incoming emails through Clean Mailbox. Takes 2 minutes.

2

Emails are filtered

Every incoming email is inspected in real-time — spam, viruses, phishing and malicious attachments are quarantined automatically.

3

Clean emails delivered

Legitimate emails are forwarded to your existing SMTP server. Review quarantined emails anytime from the dashboard.

Customers

Trusted by IT teams across the world.

"Facing daily threats received by email — spam, phishing, ransomware — Clean Mailbox blocks everything upstream and eliminates the risk before it reaches users."

SL
Sébastien Lemarinel
System & Network Manager · Groupe TRACE

"Email is central to running our business but hard to protect. Thanks to Clean Mailbox, our mailboxes are now completely free of unwanted emails."

SB
Sylvain Benitez
Director · VIMS SAS

"Simple and effective — it eliminated all the messages polluting my users' mailboxes. Deployment took minutes and I've never looked back."

JR
Julien Recurt
System & Network Administrator
See all reviews
Plans

Transparent pricing, per domain.

All plans include every feature. Choose your volume. Start with a 30-day free trial — no credit card needed.

Included in all plans
Anti-Virus
Anti-Spam
Anti-Phishing
Content Filtering
Sender Authentication
User quarantine access
Basic
€3.29 / month
  • Up to 6,000 emails / month
  • 7-day quarantine history
  • Challenge
  • Yara rules Beta
  • AI rules Beta
  • Custom API Beta
Start free trial
Business
€21.99 / month
  • Up to 50,000 emails / month
  • 30-day quarantine history
  • Challenge
  • Yara rules Beta
  • AI rules Beta
  • Custom API Beta
Start free trial
VIP
€43.99 / month
  • Up to 200,000 emails / month
  • 30-day quarantine history
  • Challenge
  • Yara rules Beta
  • AI rules Beta
  • Custom API Beta
Start free trial

All plans · 30-day free trial · No credit card · Cancel anytime (Any started period is due) · Prices per domain

Let's protect your mailbox.

Questions about the trial, setup, pricing, or a partnership? We're here — and we answer fast.

30-day free trial, no card required
Works with any mail server
Setup in under 5 minutes
Infrastructure based in France