Multiple inboxes
Set up as many mailboxes as you need across all your domains. View every address, alias, and routing path clearly on a single dedicated Routing page.
Teams & businesses
Email for your whole team. One install, no per-person fees.
Personal mailboxes, shared inboxes, multiple domains and a simple admin, all on one Cloudflare plan. Plus an API for your own apps.
Built for teams, families and businesses
One install. All your domains, people and inboxes.
- Multiple domains
Host multiple domains on a single KT8 Mail install. Manage them easily from the admin page.
- Users & aliases
Up to 50 personal mailboxes, plus shared mailboxes and as many aliases as you need.
- Shared mailboxes
One inbox. Zero mixed messages. Effortlessly manage sales@, support@ or hello@ as a team. Unlimited shared mailboxes.
- Calendar invitations
Invite anyone to an event via email. Track RSVPs (Yes, Maybe, No) instantly and launch video calls in a single click.
- Super-fast webmail
Runs on Cloudflare’s global network, served by a data centre near you.
Team Access & Shared Inboxes
Team Access & Shared Inboxes
Invite colleagues or family to sign in with their own email address and open only the mailboxes you give them. Shared inboxes like sales@ sit in everyone's sidebar, and each reply shows who sent it.
- Up to 50 personal mailboxes, plus shared inboxes, with zero per-mailbox fees
- Shared mailboxes for sales@, support@, or family accounts
- Passwordless sign-in via passkeys or secure one-time login codes
For system administrators
Everything managed in one place.
Add team members, create mailboxes, connect custom domains, and define routing rules—all from a single menu. Clear, searchable tables provide full visibility over system access and configuration.
- Users: Invite team members individually or bulk-import your entire team from a spreadsheet with pre-creation validation.
- Domains: Connect multiple domains at once and view configuration status at a glance.
- Routing: Manage every address, alias, and catch-all mapping on one clean page.
- Backups: View backup status across all mailboxes and trigger on-demand backups with one click.
For developers
Connect your existing applications.
KT8 Mail includes a lightweight JSON API and real-time webhooks out of the box. Read, search, and send email programmatically from your own apps, and receive instant alerts the moment new mail arrives. Because it runs on your own Cloudflare infrastructure, your email data never passes through our servers.
- Granular keys.Limit keys strictly to chosen mailboxes with fine-grained Read, Send, and Organise permissions.
- Instant webhooks.Receive signed HTTP events when mail arrives or sends, complete with automatic retry mechanisms.
- Secure by design.The API cannot delete emails or modify global system settings—those actions stay securely behind admin sign-in.
$KT8_API is your own API address, shown in Admin.curl "$KT8_API/mailboxes/sales%40yourdomain.co.uk/emails" \
-G -d folder=inbox \
-H "Authorization: Bearer $KT8_API_KEY"
{
"emails": [
{
"subject": "Quote for 40 hampers",
"sender_name": "Oliver Hughes",
"recipient": "sales@yourdomain.co.uk",
"read": false
}
],
"totalCount": 1
}
Who it's for
Made for everyone.
- BusinessesShared inboxes for teams, calendar invitations for client scheduling, and password-protected file delivery.
- ClubsOne address like secretary@ that passes from volunteer to volunteer.
- SolopreneursA professional address on your own name, for $5 a month.
- FamiliesOne family domain, with a mailbox for each person.
- IndividualsYour own address, your own inbox, and nobody else's adverts.
- DevelopersA native JSON API and real-time webhooks to connect your applications on your own Cloudflare infrastructure.
We believe everyone should own their own email.
Install KT8 Mail on your own Cloudflare account in about ten minutes. It's free.