Contracting operator
- Postscale
- DNScale OÜ, an Estonian company.
- Resend
- Plus Five Five, Inc., a US company based in San Francisco.
A Resend alternative built for EU data sovereignty.
Postscale is operated by DNScale OÜ in Estonia, with primary production service data hosted in the EU/EEA. Resend is operated by a US company and stores its account and email service data in the United States.
Operated by an EU companyEU/EEA-hosted primary service dataStandard GDPR DPA and documented subprocessors
The data-sovereignty differences.
Focus on who operates the service, where service data is stored, and which jurisdiction governs the provider.
Service-data location
- Postscale
- Primary production service data is hosted in the EU/EEA.
- Resend
- Account data, email metadata, logs, and API records are stored in the United States.
Sending region vs storage
- Postscale
- EU/EEA hosting is the default posture for primary production service data.
- Resend
- Choosing Ireland changes where email is dispatched, not where Resend account data is stored.
CLOUD Act consideration
- Postscale
- The contracting operator is an EU company. Disclosed subprocessors and transfer safeguards still belong in your review.
- Resend
- As a US provider, Resend is within US jurisdiction. US law can reach data a covered provider controls even when stored abroad.
Verified 11 September 2026.
Postscale DPAResend termsResend data residencyResend GDPR18 U.S.C. § 2713
Frequently asked questions
Where does Resend store service data?+
Resend states that all account data, including email metadata, logs, and API records, is stored in the United States regardless of the selected sending region. Its GDPR page also identifies message content, delivery logs, webhook payloads, and account records as US-stored customer data.
Does Resend's Ireland region keep account data in the EU?+
No. Resend documents that the Ireland region controls where email is routed and dispatched. It does not change the storage location of Resend account data, which remains in the United States.
What does the CLOUD Act mean in this comparison?+
The CLOUD Act clarified that a covered US provider must comply with valid US legal process for data in its possession, custody, or control, even if that data is stored outside the United States. It does not provide automatic government access, but provider jurisdiction remains distinct from server location.
Does choosing an EU provider remove every transfer consideration?+
No. Postscale is operated by an EU company and hosts primary production service data in the EU/EEA, but limited network, device, and operational metadata may be processed by documented infrastructure providers under appropriate safeguards. Review the DPA and subprocessor list for your own risk assessment.
What product-email workflows does Postscale cover?+
Postscale combines transactional sending through REST, SMTP, and official SDKs with inbound rules, stored message retrieval, forwarding and masked addresses, signed webhooks, delivery analytics, and DMARC reporting.
How do I migrate from Resend?+
Verify a Postscale sending domain, replace the Resend endpoint and API key or SMTP credentials, import your suppression data, test delivery and webhook events, and then move production traffic. The Resend migration guide and API converter provide the exact field mappings.
Move product email under an EU operator.
Open a Postscale account, verify a domain, and test your sending and inbound workflows.