Built for teams

Your team's inbox,
on your domain.

Self-hosted, white-label email hosting for your team. Invite teammates with exactly the permissions they need, and keep every domain and mailbox under your control, without giving up ownership.

Start for free
Invite your team Roles & permissions Self-hosted in 4 min

9

Webhook event types

3

Synced DNS providers

30j

Progressive sending ramp-up

RBAC

Access levels

Trusted by teams that can't afford downtime

Fintech E-commerce SaaS Logistics Agencies Consulting
Deliverability

Built to land in the inbox

Continuous domain health

Permanent monitoring of your SPF, DKIM, and DMARC records with instant alerts on regressions, plus an assistant that walks you from monitoring mode (none) to strict rejection (reject).

SPF · DKIM · DMARC

Progressive sending ramp-up

A freshly verified domain ramps up over 30 days (50 → 500 emails/24h) instead of sending at full volume from day one, the best way to avoid getting blacklisted on a domain with no history. A safety brake automatically freezes the ramp-up if bounce rates spike.

Warm-up · Anti-blacklist

Capacity on demand

Facing a one-off sending spike? Add a top-up or capacity boost in one click, no plan change or renegotiation needed. Your organization's effective limits update immediately.

Add-ons · Usage-based
Three reasons to choose Inkbox.

Email without friction

01

Invisible infrastructure

DNS, certificates, monitoring: everything runs behind the scenes. You only see your dashboard.

02

No waiting period

Instant domain verification. No propagation delay, no manual validation.

03

Transparent pricing

No hidden fees, no metered billing traps. What you see is what you pay.

Features

Built for

SMBs & Freelancers

One domain, multiple mailboxes, full control. Stop paying Google per user. Start with a free plan that never expires.

Web Agencies

Manage client domains from a single dashboard. Auto-sync DNS, automated DKIM, and per-client billing, all via API.

Tech Startups

REST API, webhooks, and CI/CD-friendly provisioning. Spin up test environments in seconds with isolated domains.

Quick start

Up and running in 3 steps

01

Create your workspace

Sign up, name your organization, pick your plan. You're the Owner.

02

Invite your team

Send invitations by email. Each invitee gets exactly the permissions you grant them and joins your org in one click. No shared passwords.

03

Connect a domain

Add your domain. We generate DNS records, or auto-sync via Hostinger, Cloudflare, or GoDaddy. Mailboxes are live in 3 minutes.

Email hosting

Everything your team needs

A complete email infrastructure, from the domain to the mailbox, including security, backups, analytics, webhooks, and API access.

Create my mailbox

Daily

Automatic backups

GDPR

Export & right to erasure

Bring your own domain

Connect your domain and go live in minutes. Auto-sync DNS via Hostinger, Cloudflare, or GoDaddy, or copy the MX, SPF, DKIM, and DMARC records we generate for you. Either way, you're live in 3 minutes.

Integrated Webmail

A modern webmail that works in any browser, installable as an app on desktop or mobile. IMAP, SMTP, TLS encryption, scheduled sending, and full trash/archiving.

Zero-Trust Security

Per-domain 2FA, progressive DMARC enforcement, session control, IP blocklist, and full audit trail, included by default with no security add-on to buy.

AI Drafting & Summarization

Let AI draft replies and summarize long threads directly in the webmail: Ollama (self-hosted), OpenAI, or Anthropic, your choice of provider.

User Management

Each user manages their own domains, mailboxes, and billing with full isolation and role-based access control.

Backups & Logs

Sleep soundly. Daily automatic backups, real-time monitoring, governance logs, and full audit trail keep your data safe and recoverable.

Built for teams

Everything your team needs to ship email together

Invitations, roles, per-org billing, and an audit trail, designed for teams that take email seriously.

Email invitations

Send a magic link. The invitee creates an account on your domain in 60 seconds. Email is locked to the invite.

Role-based access

Granular, per-permission access, not fixed roles. Per-domain and per-organization scopes. No accidental cross-tenant access.

Per-org billing & quotas

Each org has its own plan, Stripe subscription, and email quota. Bills go to the org owner, not shared across teams.

Activity log per org

Every mailbox action is logged per organization. Filter by actor, action, or domain. Export anytime.

Shared Address Book

Contacts and groups the whole team can search and reuse, so nobody has to re-type the same recipient list for every campaign or reply.

Developer API

Developer Integrations

Transactional Emails

Send triggered emails via a single REST call: confirmations, resets, receipts. HTML, plain text, attachments, CC/BCC.

REST · HTML · Attachments

Webhooks & Events

Subscribe to 9 event types (sent, delivered, delayed, opened, clicked, failed, complained, bounced, received) with HMAC-signed payloads, anti-replay protection, and automatic retries. Every attempt is logged (status, latency) and viewable from the dashboard.

9 events · HMAC · Anti-replay

Marketing Campaigns

Manage audience lists, import subscribers from CSV, and send campaigns with suppression list enforcement.

Audiences · CSV · Suppression

Scoped API Tokens

Create tokens limited to exactly the scopes they need, with expiration and one-click rotation, so there's no more one giant key with access to everything.

Scopes · Expiry · Rotation

Sandbox Environment

A disposable test project with its own inboxes and API key, so you can send and receive realistic test emails without touching your production domain or quota.

Test inboxes · Isolated quota

Ready-to-run Snippets

Copy-paste curl, Node, and Python examples for every endpoint, including webhook signature verification, so you can send your first email in minutes.

curl · Node · Python
Read the API quickstart guide

REST API Endpoints

POST/v1/emails/send
GET/v1/emails/events
GET/v1/emails/suppressions
POST/v1/audiences/:id/import
POST/v1/webhooks
Full API reference

Webhook payload example

{
  "event": "email.delivered",
  "timestamp": "2026-05-03T10:01:00Z",
  "signature": "sha256=abc123...",
  "data": {
    "messageId": "<abc@yourdomain.com>",
    "recipient": "user@example.com",
    "latency": 142
  }
}
HMAC-SHA256 signed · Retry on failure
Developer API

Developer Integrations

Drop-in code snippets for your favorite language.

const res = await fetch('https://api.inkbox.cloud/v1/emails/send', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer ik_live_••••••••••••',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    from: 'noreply@yourdomain.com',
    to: 'user@example.com',
    subject: 'Welcome aboard!',
    html: '<p>Hello <b>World</b> 👋</p>',
  }),
});
// { status: "queued", messageId: "<abc@domain.com>", latency: 18 }
Security by Design

Security you can trust

Built from the ground up with zero-trust principles. 2FA, RBAC, encrypted storage, and continuous monitoring protect every layer, with no security add-ons required.

2FA authentication per domain
RBAC: Owner + custom access
Timestamped & filterable audit logs
Integrated Fail2ban & IP Protection
Security matrix · yourdomain.com
DKIM SignatureVERIFIED
SPF RecordALIGNED
DMARC PolicyENFORCED
TLS Encryptionv1.3
2FA EnforcementON
Fail2BanACTIVE
Pricing

Transparent, scalable pricing

FAQ

Frequently asked questions

Your team. Your domain. Your email.

Bring your team onto your own email infrastructure. Free to start, self-host when ready.

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Inkbox SAS | White-Label Email Hosting for MSPs