Deliverability you control
Send through your own domains, phones, and trusted routes.
All your messaging.
One organized workspace.
Supromail brings Email, SMS, WhatsApp, Telegram, and Business Email into one hosted workspace with clear monthly limits.
Connect every owned messaging channel
Supromail brings everything together into one simple, owned inbox.
No opaque SMS gateway markups. Every message flows through what you control, with one place to inspect delivery, routing, and failures.
Everything you need
SMS routing
Choose carriers, countries, fallback paths, and device pools.
Real-time tracking
Follow every message, event, and webhook from one timeline.
Failover management
Keep sends moving when a phone, route, or provider is unavailable.
How it works
Pure and simple.
Connect the assets you already own, set your routing rules, and send through one predictable API.
Step 1
Connect all your channels
Bring verified domains, Android phones, webhooks, into one controlled workspace.
Step 2
Everything in one place
See email, SMS, routing decisions, delivery logs, and suppression events without switching dashboards.
Scoped API keys
Create, revoke and rotate keys safely.
Signed webhooks.
Verify every event with our signature.
Real-time event logs
Track every message end to end.
Idempotent requests
Built to be safe and reliable at scale.
Step 3
Send faster than ever
Clean REST APIs. Predictable JSON. Signed Webhooks. OpenAPI specs.
# Send an email
curl -X POST https://api.supromail.com/v1/email/messages \
-H "Authorization: Bearer $SUPROMAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"from": "[email protected]",
"to": "[email protected]",
"subject": "Welcome",
"html": "<h1>Hello</h1>"
}'All your conversations with the same customer in one place.
Private by design.
Your infrastructure, keys, and customer message history belongs to you.
End-to-end control
Use your own domains, phones, and message routes.
Signed events
Verify each webhook before trusting delivery state.
No markup layer
Pay your carrier, not a per-message platform tax.
Workspace isolation
Logs and settings are scoped to your account.
Why switch
Why teams switch to Supromail
The platform that gives you control without the complexity or hidden costs.
| Feature | Traditional providers | Supromail |
|---|---|---|
| Send from your own domains | No | Yes |
| Send SMS through your own phones | No | Yes |
| Hosted service and API | No | Yes |
| Customer data stays on your server | Rarely | Always |
| Fixed monthly plans, no usage overages | Usually | None |
| Local SIM routing | No | Yes |
| Smart failover across devices | Limited | Yes |
FAQ
Good questions, quick answers.
Need the full version? The FAQ covers setup, routing, webhooks, security, WhatsApp, Telegram, billing, and support.
Read the full FAQWhat channels can I send through?
Supromail supports email from your verified domains, SMS through your Android phones, WhatsApp through linked numbers, and Telegram through your own bots.
Do I really send SMS through my own phones?
Yes. Pair Android devices with Supromail and they act as secure SMS gateways for your workspace, using your SIMs and carrier plans.
Can I use my own email domains?
Yes. Add a domain you control, publish the DNS records Supromail provides, and verify ownership. Supromail then sends through its hosted email delivery service.
Are there usage overages?
No. Supromail uses fixed monthly plans. Sends above your included email allowance are rejected until the next calendar month or a plan change.
Can I self-host Supromail?
No. Supromail is a hosted service; its source code is not licensed for customer deployment or operation.
Join the future of owned messaging
Start sending from domains and phones you control in under 10 minutes.
Start sending for free