SenderStudio is a private delivery platform operated by 2‑morrow s.r.o. Every message is authenticated, signed and delivered from our own infrastructure — nothing leaves the EU.
The practices that keep an IP clean are not optional here — they are the architecture.
Every component runs in EU data centres. No transfers outside the EU. We act as a data processor under GDPR for the clients we serve.
DKIM for the sender's own domain, SPF via a dedicated return‑path, DMARC alignment and a reverse DNS that matches the sending host.
Each client has its own domains, keys and data. Signing keys are encrypted at rest. Every administrative action is written to an audit log.
Recipients opted in. Marketing mail carries RFC 8058 one‑click unsubscribe. Bounces and complaints suppress the address permanently.
A drop‑in compatible API: the JSON you send today keeps working. Only the base URL and the key change.
{
"personalizations": [{ "to": [{ "email": "anna@example.eu" }] }],
"from": { "email": "hello@yourdomain.eu" },
"subject": "Your invoice is ready",
"content": [{ "type": "text/html", "value": "…" }]
}
// 202 Accepted · X-Message-Id: 7d82a289-…If you operate a mailbox provider and see traffic from this infrastructure, these are the addresses that are read and acted on — usually within hours.
abuse@senderstudio.eupostmaster@senderstudio.eusecurity@senderstudio.euprivacy@senderstudio.eumail.senderstudio.eu144.91.92.19mx.senderstudio.eu