A sovereign mail backend you operate. Keep your UI, or adopt ours.

One binary. Less infrastructure.

A standard legacy mail stack running IMAP, SMTP, a webmail, a spam engine, a calendar server and backups typically consumes 10 to 18 GB of RAM on a production host. OxiMail in a similar configuration runs in 2 to 4 GB. The difference comes from the single-binary design — one process, one memory space, no inter-service marshalling, no separate webmail PHP pool, no standalone CalDAV daemon.

Lower RAM means fewer hosts per thousand boxes. Fewer hosts means simpler deployment, simpler backup, simpler monitoring. The operational story changes materially at scale — and at scale is exactly where a hoster’s margin lives.

Evaluation to production.

1. Test instance.We spin up an OxiMail instance on your infrastructure; you migrate a handful of test mailboxes and observe protocol behaviour against your existing UI.
2. Single-domain trial.One customer domain in production, with you and us monitoring together for two to four weeks. A rollback path is held throughout.
3. Production migration.Phased rollout, domain by domain or shard by shard. Migration tooling handles Stalwart, Dovecot and generic IMAP sources.
4. Ongoing support.A support bundle tailored to your SLA — see pricing.

Drive replaces the file server. Your differentiator for on-premise SMBs.

If your customer base is small and mid-sized businesses with on-premise Samba, Windows Server or NAS stacks, Drive is your differentiator: OxiMail serves the office file share itself over SMB, so the workstations need nothing installed, and the same files open in the browser and in the Sync agent from anywhere. One box serves the mail and the files, under one identity and one backup.

Sell relay to your customers, on your own IPs.

The server that holds your customers’ mailboxes is also the smarthost they send through. Each customer sends only from the domains they have proven they control, every new one ramps up gradually, and a single-use token plugs a customer in. A recurring service on infrastructure you already run.

Your first and only mail and relay server →

Distribution groups built in. Managed lists as a module.

The server ships distribution groups — aliases that fan out to N members, LDAP-syncable. Managed mailing lists are a separate module: moderation queues, archives with search, digest mode, double opt-in, DMARC-friendly ARC signing, bounce auto-unsubscribe, external subscribers under policy. Two names, two scopes, no confusion at billing time.

Volume pricing — talk to us.

Hoster pricing is a scoped conversation against your volume, your tier (backend-only or backend + Workspace) and your support SLA. The pricing page carries the public framing; the volume tier is set with you.

See pricing →