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DMCN for business

Email fraud, made impossible. Not filtered — impossible.

DMCN replaces email's 1982 trust model with cryptographic identity: a message from an unverified sender is never delivered, and a message from a verified sender cannot be forged. Mail between DMCN inboxes is encrypted before it ever reaches us, and the account keys stay with your organization, never with us.

Talk to us How it works
Emails Gmail and Outlook from day one · Your domain, your DNS · We hold no account keys
$3.05B

lost to business email compromise in 2025 alone — roughly $123,000 per reported incident.

FBI IC3, 2025
89%

of unwanted email technically passed SPF, DKIM and/or DMARC. Authentication verifies domains — it has never verified people.

Cloudflare, 2023
0.06%

of 81.6 million real emails were end-to-end encrypted, in the largest study ever done. Pushing key custody onto end users killed every previous attempt.

IEEE S&P, 2022

The tools you already pay for filter fraud. They cannot make it impossible — the protocol underneath has no idea who anyone is. That is the part we replaced.

Why DMCN

We didn't build a better filter. We replaced the trust model.

Senders can't be forged

Every DMCN message carries its sender's cryptographic signature, verified before delivery. Impersonating a colleague isn't detected and filtered — it's structurally impossible. Mail from outside the network arrives with its SPF, DKIM and DMARC verdict shown rather than silently computed, so you can see exactly what was checked.

Your admin holds the keys

Mail is end-to-end encrypted, and on a managed domain your own administrator — not us, not each employee — is the custodian. A lost laptop or a departure is recovered by your org in minutes. We can't read mail between DMCN inboxes.

No rip-and-replace

The bridge keeps you emailing Gmail, Outlook and every legacy address from day one, with SPF, DKIM and DMARC alignment handled for you. Mail between DMCN inboxes is always end-to-end encrypted.

Your domain stays yours

You keep your own DNS as the trust root, and consent is mutual and revocable. We hold no zone and no account keys, and we act on your domain only within the authority your signed record grants.

Admin key custody

The keys stay in your building.

Encrypted email failed for 25 years because key custody was dumped on end users. On a managed domain, your administrator is the custodian — never each employee, and never us. The provider can't read mail between DMCN inboxes; your organization can always recover it.

Onboard in minutes
Your admin provisions each mailbox and pairs it to the employee's devices with a short verification code. No passwords to distribute, nothing for us to see.
Recover without us
Lost or stolen laptop? Your admin re-pairs the account the same way. Recovery never involves DMCN — the custody boundary is inside your organization.
Offboard instantly
When someone leaves, one rotation locks every device they hold out of the mailbox — immediately, and provably. The address is re-keyed and work continues.
Managed domain acme.example
Sara Lindqvist
sara@acme.example
Active
Tom Okafor
tom@acme.example
Active
New starter
devices: 0 — pair to onboard
Provisioned
Departed 12 Jul
j.doe@acme.example
Rotated · locked out
Pair a device Rotate & lock out
Deployment

No rip-and-replace. Four steps.

01

Keep your domain

Publish one DNS record to prove the domain is yours, then your mail records when you want legacy mail bridged. Your DNS stays the root of trust — we never touch your zone.

02

Enroll mutually

Your domain authorizes us to serve it; our fleet accepts your domain. Two explicit cryptographic consents — either side can revoke.

03

Provision your team

Your admin mints each mailbox and pairs employees' devices with a short verification code. Keys stay inside your organization.

04

Mail everyone

Legacy mail flows through the bridge with authentication alignment handled for you. Mail between DMCN inboxes is end-to-end encrypted from the first message.

Sovereignty

“We hold no zone and no account keys. Mail between DMCN inboxes is ciphertext to us, and on your domain we act only within the authority your signed record grants.”

Your DNS stays the root of trust, and consent is mutual and revocable. That's not a contract clause — it's the architecture.

Why sovereignty buyers pick DMCN

Questions, answered straight.

Nobody we email is on DMCN. Does it still work?

Yes — that's what the bridge is for. Your team keeps emailing every normal address from day one, and we handle SPF, DKIM and DMARC alignment on outbound so your mail lands in inboxes. Every counterparty who adopts DMCN upgrades that channel to end-to-end encryption automatically. You buy it for what it does inside your organization today; the network effect is upside, not a prerequisite.

What happens when an employee loses a device — or leaves?

That's the headline feature, not the fine print. On a managed domain your admin custodies the keys: a lost laptop is re-paired in minutes, and offboarding is a rotation that locks every device the departed employee holds out of the mailbox immediately. This is exactly the key-management problem that sank S/MIME and PGP — DMCN was designed around it.

Can DMCN read our mail?

Not mail between DMCN inboxes: it is encrypted on your devices, and our servers hold no account keys, not even encrypted copies. Mail to and from ordinary addresses passes through our bridge, which handles it in plaintext to translate it, and our relays see delivery metadata such as who wrote to whom and when. On a managed domain your own administrator can recover accounts; we never can.

Is mail to Gmail and Outlook end-to-end encrypted?

No, and we won't pretend otherwise. Mail crossing the bridge to legacy email is protected in transit (TLS), like all email today — that's the floor, never the ceiling. Mail between DMCN inboxes never touches the bridge and is always end-to-end encrypted. If you want us out of the trust path entirely, you can run your own bridge.

What about compliance and eDiscovery?

Every message is signed at composition — tamper-evident and non-repudiable, which is stronger evidence than ordinary email. Admin key custody answers recovery; for retention, encrypted archive-on-send to an organization archive key is designed and on the roadmap, and design partners shape it. We'll be straight with you about what's built versus planned.

What if DMCN disappears?

The protocol is open and identity records are self-certifying: your keys and your domain stay yours, and any operator running the open protocol could serve them again. Mailbox export is being built; until it ships, stored mail lives on our relays. Learn more about the protocol

Put email fraud out of business.

One email starts the conversation.

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