Corporate email on your own domain — with no fee per mailbox
Deploy your own mail server (Zimbra, Mailcow) on a cloud instance: as many mailboxes as you like for the fixed price of the server, with correspondence stored by you, not Google. Port 25 is open and we set up PTR records — so mail actually gets delivered.
Let's count honestly
An example for a team of 30 mailboxes. Google Workspace and Microsoft 365 prices are current as of publication.
| Let's count honestly | Google Workspace | Microsoft 365 | Your own mail on OneCloudPlanet |
|---|---|---|---|
| 30 mailboxes | ~$210/mo ($7×30) | ~$210/mo ($7×30) | ≈$20.45–$40.90/mo — a single server |
| 100 mailboxes | ~$700/mo | ~$700/mo | the same server (+disk if needed) |
| Data is stored | at Google | at Microsoft | by you, in Ukraine or the EU |
| Mailbox limit | 30 GB (pooled) | 50 GB | as much disk as you allocate |
| Yearly saving on 30 mailboxes | — | — | over $2,000 |
Your own mail needs administration. No one to do it? We'll add "Basic administration" — and it still comes out cheaper than Workspace.
Why email specifically with us
The technical details that decide whether a mail server actually works and whether letters get delivered.
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Port 25 is open
On DigitalOcean, AWS or Hetzner SMTP is blocked for new accounts — a mail server simply won't run there. With us it works from day one.
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PTR/rDNS in the panel
Reverse DNS for your IP is set up yourself in a minute, with no tickets. Without PTR letters go to spam — with us it's a field in the IP settings.
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Clean IP
We monitor ranges against spam lists (Spamhaus, UCEPROTECT); if a client got a "dirty" IP, there's an IP-change procedure.
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Snapshots + Backups
A snapshot before a Zimbra update, backups on your schedule — configured in the panel.
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Object Storage for archives
Old correspondence and mail-database backups — at $0.0013/GB/mo in a separate location.
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Free firewall
Only the mail ports and webmail are open to the outside — the rest is closed by default.
Which solutions you can deploy
Ready Marketplace images come up in minutes, or build your own stack on a clean instance.
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Zimbra
A full Workspace replacement: mail, calendars, contacts, shared documents, webmail. For companies of 20–500+ users. Recommended ocp-5 (4 vCPU / 16 GB) — ≈$40.90/mo.
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Mailcow
A modern mail stack in Docker: SOGo webmail, anti-spam, DKIM out of the box, a handy panel. Optimal for 5–100 mailboxes. Recommended ocp-3 (2 vCPU / 8 GB) — ≈$20.45/mo.
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Poste.io and others
A lightweight server for small teams — up to 20 mailboxes on a minimal instance from ≈$8.11/mo (ocp-1).
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Your own stack
Postfix + Dovecot + Rspamd on a clean instance — full control for experienced admins.
How to launch — 4 steps
A typical launch is half a day, together with DNS propagation. No admin? We'll deploy and set it up within "Basic administration".
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Deploy the image
From the Marketplace (Zimbra/Mailcow) or a clean instance for your own stack.
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Point the domain
MX record to the server, SPF/DKIM/DMARC — using our guide "DNS setup for a mail server".
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Set the PTR record
The reverse DNS field in your IP settings — one minute.
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Create mailboxes
Connect the team: webmail, Outlook, Thunderbird, mobile clients — standard IMAP/SMTP.
Frequently asked questions
Get advice on the configurationYour own mail — in half a day
Fixed price, unlimited mailboxes, data with you. Deploy from the Marketplace or get advice on the configuration.
Latest publications
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