The Ukraine War Could Get Closer To Home

If undersea cables are cut, your email stops.

Even "UK-hosted" email almost always signs you in through Google or Microsoft servers abroad.

Parliament's own security committee says it can no longer rule out UK infrastructure being deliberately targeted — and isn't confident the UK could recover in time.

Fig. 1 — External routes & domestic mesh

Ordinary day. Mail moves between British sites over the domestic network, and crosses the water over subsea cable to every market Britain trades with. Watch the labelled dots: sign-in, SSL and DNS for many everyday services ride the same route. The twelve mainland sites in the middle are the only part of this picture that does not rest on the seabed.

We think you should have a UK-only fallback in place before you need it — not after.

Reserve a place How it works
60+Subsea cables
landing in the UK
95–99%Of UK international
data on those cables
0UK-owned repair ships,
since March 2025
~24 hrsTo the first sign-in
failures, we estimate

The one-minute version

The same idea, in about a minute.

01 — The risk

Every route out of Britain runs through a handful of cables.

Around 60 subsea cables carry 95–99% of the UK's international data. Parliament's own security committee says it can no longer rule out them being deliberately targeted, and isn't confident Britain could repair or reroute in time. Cut enough of them, and sign-in fails within about a day — even for "UK-hosted" inboxes.

Read the full case
02 — The fix

A standby inbox that never leaves the country.

Dart Mail gives you a pre-configured account, sign-in, message storage and certificates that all sit on named UK servers — not "the cloud." Nothing to migrate, nothing for staff to learn, until the day your everyday email can't reach its own sign-in service.

Read the full pitch
03 — The catch

It's insurance, not a daily driver.

A small monthly allowance of real traffic proves sign-in, delivery and certificates all still work — it isn't trying to replace Microsoft 365 on an ordinary Tuesday. And it only works between our own accounts: message someone off-network and you're back on the same seabed.

What we are not claiming

  • We cannot keep the internet up. We're solving one problem: your messages, and the sign-in and certificates they rest on.
  • This is insurance, not a daily platform. It has one job, on one bad day — not to be as good as Microsoft 365 on an ordinary Tuesday.
  • It only works between our own accounts. Message someone off-network and it's ordinary email or chat again — still crossing the same seabed.

Want the full evidence trail — Parliament's findings, real incidents, and who we think is behind them? Read the full case →

Licensing

Annual licences, reserved before launch.

This is insurance pricing for an account nobody uses until they have to. Reserve now and the rate holds for as long as you keep the account.

Personal
One standby account
£24/year
  • 1 standby account, 1 GB*
  • Your username, pre-configured and waiting (i.e: johnsmith)
  • Sign-in that never leaves the UK
  • Inbox, compose and attachments, right in your browser
  • Comms Kitchen instant messaging account included
Reserve — £24/year

Most popular
Business
2+ standby accounts
£40/account/year
  • Everything in Personal
  • Unlimited aliases under your company's username namespace (i.e: johnsmith.buildco)
  • Admin console
  • Option to turn Comms Kitchen messenger on for team (included in price) as an internal or external instant messaging app.
Reserve — £40/account/year

Corporate
10+ standby accounts
Get a proposal
Priced around your estate — talk to us
  • Everything in Business
  • Departmental account namespacing (i.e: johnsmith.accounts.acmecorp)
  • Custom sized accounts
  • On-premises appliance option
  • Assurance pack for NIS and CAF submissions
  • Readiness SLA, drill reports, and a named account contact
Request a proposal

* Larger account storage can be purchased for any plan.

What you are buying today. Dart Mail is in pre-launch and the service is not yet live. Reserving buys one year's licence and fixes that rate for as long as you keep the account. Your licence year does not start until we launch — you are not paying for months of nothing.

To keep this a genuine standby rather than a habit you fall into, live traffic is capped at 10 messages a month during peacetime — enough to prove sign-in, delivery and certificates all still work. That cap lifts automatically to full capacity the moment failover activates.