Free up to five people.
You license software that runs on your own machine — OxiMail operates no service in between. Below five users, in an organisation running it for itself, that licence is free. Above, you choose an edition. The price list is being rebuilt around this model: this page describes the shape, and the figures follow when they are firm.
The editions
Free
An organisation running OxiMail for itself
The whole suite, not a stripped-down edition.
Essential
Operators who bring their own interface
The engine, behind your own front end.
Suite · Most common
Organisations giving people a finished product
What most deployments actually buy.
Suite + Drive
Organisations retiring a NAS or a Samba box
The file server folded into the same machine.
Two things sit outside the editions. Modules are bought à la carte on top of any paid edition: the AI assistant, Meet, and Booking and Notify in controlled beta. And the scaling layer — PostgreSQL, object storage, clustering — exists for deployments past a few thousand accounts; below that, one SQLite-backed binary has been validated to about 2000 accounts and is the right answer.
Side by side
| What you get | Free | Licensed |
|---|---|---|
| Who it is free for | An organisation running OxiMail for itself, five users or fewer. Aliases, distribution lists and shared mailboxes without their own login do not count. | Above five users. And from the first mailbox for a hoster or a managed-services company operating OxiMail for third parties. |
| Licence | The OxiMail License, a fair-source licence. Every release becomes AGPL-3.0-or-later four years after it ships. | The same licence, with a paid grant. The four-year conversion applies just the same. |
| Mail, calendar, contacts, tasks, files, chat | Complete | The same engine |
| Client applications | Workspace (web) and Sync (desktop), included | The same applications |
| Mail and relay server | Send through any relay, or be the smarthost for other servers and your emailing tools, built in | The same relay |
| Anti-spam | Three-stage scored pipeline (network, content, per-tenant Bayesian model), built in | A neural model swaps into the model stage |
| Storage & scale | SQLite — validated to about 2000 accounts per instance | PostgreSQL, object storage, clustering — for deployments past a few thousand accounts |
| Directory | — | LDAP and directory integration |
| Modules | — | AI assistant · Meet · Booking and Notify, in controlled beta · managed mailing lists, in development |
| Support | The public documentation | Commercial support bundles |
| Who operates it | You | You — paying does not move your data anywhere |
Nothing is taken out of the free tier to create the paid one. Below five users you get the complete suite, client applications included. Above the line you are paying for scale, for optional modules, and for someone to answer the phone.
Operators and partners
If you operate OxiMail for other people — a hosting company, a managed-services provider, an integrator — you are licensed from the first mailbox, and you buy your mailboxes at a wholesale price. What you charge your own customers is your business, and we do not want to know your client list.
Support
Optional — a safety net if you want one, never a dependency you cannot leave.
Annual, on quote
Annual, on quote
One-off, on quote
FAQ
Because we changed the licensing model and the old figures no longer describe what we sell. Publishing numbers we already know we will revise would waste your time. Ask us and you get a firm figure for your situation within a few business days; the public list follows once it is settled.
Someone who can sign in with their own mailbox. Aliases, distribution lists and shared mailboxes without their own login do not count, and there is no limit on them. Anything outside production — testing, evaluation, teaching, research — does not count either.
The server tells you. You get an admin banner and a compliance report, and thirty days to sort out a licence. It does not stop delivering mail, it does not disable features, and it does not ask a server of ours for permission to keep running. Enforcement is a contract, never a switch we hold.
No, and we will not call it that: open source has a definition and this licence does not meet it. The server source is published and auditable, free below the threshold, and each release converts to AGPL-3.0-or-later four years after it ships. You get the auditability and a contractual ceiling on our pricing power. What you do not get is the right to run it commercially for free.
No — channel-only. We do not operate hosted mailboxes ourselves. OxiMail reaches users through hosters, institutions and partners. For a managed OxiMail, a partner in your region operates it for you.
Yes. Moving between editions is a licensing change — the binary and your data stay put. Start free or with Essential and grow into the rest; we arrange a pro-rated transition.
Tell us your shape — account count, who operates it, your jurisdiction — and we confirm the tier and a firm figure within a few business days.