One route, one call
POST with sender, recipient and HTML. An idempotency key makes sure a repeated call never produces a second email — not even after a timeout.
Transactional email API
The European transactional email API.
Send emails with one API call. Hosted in Germany. GDPR-first.
Free tier without a credit card · Data processing agreement included
Life of a message
msg_01JD9F8QK2…- POST /v1/emailst+0.00 s
- to
- customer@example.com
- subject
- Your invoice 2026-0042
- html
- <p>Your invoice is attached.</p>
- Handed to the mail servert+1.84 s
250 2.0.0 Ok: queued
- Content deleteddeleted
kept: id · status · timestamp · smtp_code
Processed and stored in Europe.
Servers in Germany.
A German company on the contract.
150 msp95
until the API has accepted your message
50/speak 200/s
sustained throughput per account
0trackers
no pixels, no rewritten links
2locations
Falkenstein and Nuremberg, both in Germany
Deliverability
We tell you what your DNS is still missing.
SPF, DKIM and Return-Path are checked continuously — not once during setup. If your provider changes something, you see it here before your delivery rate does.
For DMARC we propose a record instead of quietly assuming one. It is the most common reason why messages perform worse at large mailbox providers.
DNS check
your-domain.com- SPF
- v=spf1 include:spf.mittaro.de ~all
- DKIM
- mittaro._domainkey.your-domain.com
- Return-Path
- bounce.your-domain.com
- DMARC
- no record
Features
Everything a send needs. Nothing that slows it down.
Domains in minutes
We generate the DKIM key, you add three DNS records. Verification runs continuously and tells you which record is missing and why.
Signed webhooks
Delivery, bounce and complaint arrive as events in your application — signed, retried, with a dead-letter queue for anything that keeps failing.
Suppression included
Hard bounces and complaints block the address automatically. You stop sending to recipients who damage your delivery rate.
Content is deleted
After handover to the mail server we delete subject, body and recipient address. What remains is metadata — status, timestamp, SMTP code.
Operated from Germany
Our own mail servers with our own IP addresses and rDNS, in data centres in Falkenstein and Nuremberg. No relay, no middleman.
API
One call out, metadata back
Finished HTML in, an identifier out. You query the status later through the same identifier — the API never returns the content again.
Request
curl https://api.mittaro.de/v1/emails \
-H "Authorization: Bearer $MITTARO_API_KEY" \
-H "Idempotency-Key: 01JD9F8QK2NX7VZ3M4TBY6RHWC" \
-d '{
"from": "invoice@your-domain.com",
"to": "customer@example.com",
"subject": "Your invoice 2026-0042",
"html": "<p>Your invoice is attached.</p>"
}'Response to GET /v1/emails/:id
no content{
"id": "msg_01JD9F8QK2NX7VZ3M4TBY6RHWC",
"status": "sent",
"created_at": "2026-08-14T09:14:07Z",
"sent_at": "2026-08-14T09:14:09Z",
"smtp_code": "250"
}Pricing
One price per month. No per-thousand fee.
| Plan | Emails / month | monthly | yearlyper month | Start |
|---|---|---|---|---|
| Free | 2,000 | €0 | €0 | Start |
| Starter | 10,000 | €9 | €8 | Start |
| Propopular | 50,000 | €19 | €16 | Start |
| Business | 100,000 | €39 | €33 | Start |
| Scale | 500,000 | €149 | €124 | Start |
| Scale+ | 1 M | €249 | €208 | Start |
| Enterprise | custom | from €499 | from €416 | Contact us |
- Every plan includes every feature. The only difference is volume.
- When the allowance is used up, sending stops — we warn you well before that. There is no surprise invoice.
- Cancel monthly. Pay yearly and two months are free.
- All prices exclude VAT. The Free plan does not require a credit card.
First email in three minutes.
Connect a domain, create a key, send. The free tier runs without a credit card.