Comparison · facts checked 14 Oct 2026

SuperMailOS vs Purelymail

$10 a year, or paying per person.Purelymail’s simple pricing is $10 a year, with no hard limits on users, custom domains or storage. SuperMailOS costs more, per mailbox. This page is about what the difference buys, and when $10 is all you need.

The short answer

Choose Purelymail ifPrice is the constraint, and you're comfortable setting up and checking your own DNS.
Choose SuperMailOS ifYou want a team inbox for every domain, with the DNS and deliverability setup done for you.

Last updated . Purelymail details from public sources, 14 Oct 2026. Where they win comes first.

01 Side by side

Purelymail and SuperMailOS, row by row.

An honest, current comparison. Where we're unsure of a competitor detail, we describe what SuperMailOS does rather than assert theirs.

Feature and price comparison: Purelymail versus SuperMailOS.
FeaturePurelymailSuperMailOS
PricePurelymail$10 a year (simple pricing)SuperMailOSPro $4/mo per mailbox ($3 annual) · Business $6/mo ($5 annual)
What the price coversPurelymailThe whole accountSuperMailOSEach person's mailbox; aliases and shared access are free
LimitsPurelymailNo hard limits on users, custom domains or storage; heavy use can mean usage-based pricingSuperMailOSPro: up to 3 domains, 10 GB a mailbox. Business: unlimited domains, 30 GB
Email authenticationPurelymailYou add the DNS records Purelymail providesSuperMailOSYesGenerated from the server zone, checked live, one-click on six DNS hosts, DMARC dashboard, warm-up
Included With caveats Not includedPurelymail details compiled from public sources as of 14 Oct 2026 and may have changed since. SuperMailOS details reflect current plans.

Purelymail facts from Purelymail’s own pages: Purelymail pricing · checked 14 Oct 2026

02 Honestly

Where Purelymail is the better choice.

If any of these describe you, Purelymail is probably the right call — and that's fine.

01

Price

$10 a year is in a class of its own. If the budget is the constraint, it's the honest answer.

02

No hard limits

Users, custom domains and storage aren't capped on the simple plan.

03

A simple offer

One price instead of a tier table.

And where SuperMailOS is

01

Every domain in one inbox

A threaded web inbox where every domain's mail lands together, and replies go out from the address they came to.

02

Setup done for you

Records generated from the mail server's zone and checked before you can send, DKIM on every message, warm-up on new domains and DMARC reports in a dashboard.

03

A team product

A mailbox per person, shared mailboxes like support@ that count once, and role aliases that survive staff changes, on one bill.

04

API, webhooks and MCP on every plan

Read, send and react to mail from your own code or an AI assistant, with scoped keys you can revoke.

Which one fits you

Personal domains, a side project, a tight budget and happy to self-serve: Purelymail is hard to argue with. A team that wants every product’s email in one inbox, with the setup handled: SuperMailOS.

SuperMailOS is hosted business email: we run the mail server, the sending IPs and the deliverability work, so there's nothing to self-host and no server to keep alive.

Still comparing? Ask your AI — we've written the question.

03 Switching

Switch in an afternoon. Keep your domain.

Your domain stays where you bought it. Nothing to install, and your old mail can come with you.

01

Point your domain

One click on Cloudflare, DigitalOcean, Linode, Vultr, Hetzner DNS and Spaceship. Anywhere else, we show you exactly what to paste.

02

Create your addresses

A mailbox for each person, and free aliases for everything else — hello@, billing@, support@.

03

Keep your apps

Use the web app, or Apple Mail, Outlook and Thunderbird over IMAP. An iPhone app is coming soon.

04 Questions

Questions people ask.

Something else? Write to us — a real person answers, usually the same day.

How much does Purelymail cost?+
$10 a year on its simple pricing, with "no hard limits" on users, custom domains or storage. If you use significantly more than $10 a year in resources, Purelymail may move you to its advanced, usage-based pricing. From Purelymail's pricing page, checked 14 Oct 2026.
Why does SuperMailOS cost more?+
You pay per person for a hosted team inbox: DNS records generated and checked for every domain, DKIM on every message, DMARC reports parsed into a dashboard, gradual warm-up, IMAP/SMTP, a REST API and an MCP server. Pro is $3 a mailbox a month billed yearly. If you don't need those, Purelymail is the better deal.
Can I start on Purelymail and move later?+
Yes. Add your domains and verify DNS (one-click on Cloudflare, DigitalOcean, Linode, Vultr, Hetzner DNS and Spaceship, guided copy-paste elsewhere), create the mailboxes, copy your mail over IMAP, then point MX at us. Role addresses come across as free aliases.

Bring every
domain home.

Try it free for 14 days. No card, and your domain stays yours.