First-class mail for small teams
Company email,
live in five minutes.
SuperMailOS sets up real email on your own domain — MX, SPF, DKIM, DMARC, the works — and verifies it live while you watch. Then it gets out of your way: an inbox as simple as Gmail.
- Bring your own domain
- Deliverability handled
- Import old mail
Delivery receipt
acme.com
4 of 5 verified — you can already send.
LiveThree steps. The only clock that matters is your registrar's.
Onboarding, honestly
Add your domain
Type acme.com. We instantly mint your DKIM keys and generate every record you need — nothing to look up.
One-click or copy-paste
On Cloudflare, Route 53 or GoDaddy? We set the records for you. Everywhere else: copy-paste, and we verify live.
Start sending
Rows flip green the second DNS resolves. Meanwhile your instant @yourco address already works — zero waiting.
After setup
…and then it's just email.
Threads, search, keyboard shortcuts, shared addresses. If your team can use Gmail, they can use SuperMailOS today — this is the real app, not a mockup.
Deliverability, solved
We send through warm, reputable infrastructure with DKIM signing and bounce handling. Your mail lands in the inbox — not the folder no one checks.
Shared inboxes
support@ and hello@ your whole team can answer from — without forwarding chaos or stepping on each other's replies.
Gmail-simple
Threads, search, keyboard shortcuts. Nothing to learn and no training session. Your team is productive on day zero.
Minutes, not weeks
No mail server to run, no MX archaeology, no reputation warm-up. The boring, hard parts are permanently our problem.
A short letter about why we built this
Dear founder,
You didn't start a company to learn what a DKIM selector is. Yet every email suite makes you do a week of homework before you can send “hello, we're open for business”.
So we cut everything between you and a working inbox. Type your domain, watch the records flip green, send your first email — before the kettle boils.
The hard parts of email didn't disappear. They're just ours now.
— The SuperMailOS team
Return to sender
The stuff we deliberately skip.
Every "enterprise" email suite buries the one thing you wanted — a working inbox — under a week of setup. We cut it.
Get your team on SuperMailOS- ✕Multi-day domain "provisioning" queues
- ✕Reading DNS docs at 11pm
- ✕Deliverability consultants
- ✕Seat minimums and annual lock-in
- ✕A UI that needs a training session