eusend The European alternative to Resend

eusend is an email API for transactional and marketing email from a sole proprietorship in Oslo, registered in the Norwegian Brønnøysund Register. Developers send via a REST API with idempotency keys and test mode, or via an SMTP relay with TLS. Sender domains are verified via DKIM, SPF and DMARC, and webhooks report deliveries, bounces, complaints, opens and clicks. For newsletters there are audiences, contacts, broadcasts, scheduled sends and one-click unsubscribe. SDKs are available for Node.js/TypeScript, Python and Go, along with migration guides from Resend, SendGrid, Mailgun, Postmark and Amazon SES.

According to the sub-processor list, API servers and delivery run at Hetzner in Nuremberg and Falkenstein, the website, dashboard and managed database at UpCloud in Frankfurt, and object storage at UpCloud in Finland. Uptime monitoring is handled by BetterStack from the Czech Republic, abuse screening by Mistral AI from France. US services listed are Sentry (error reports, EU region in Germany) and Cloudflare (DNS and edge), and Polar Software from the USA acts as seller of record. According to the provider, message content and recipient data stay in the EU. Website analytics run on a self-hosted Umami instance in Germany without cookies.

eusend has messages from new accounts screened for spam and phishing by Mistral AI. According to the provider, zero data retention applies and content is not used to train models. Recipient addresses are not sent to Mistral. In addition, eusend publishes a public statistics page showing the median time from the API to the recipient server.