Contracting operator
- Postscale
- DNScale OÜ, an Estonian company.
- Postmark
- AC PM, LLC, a US company.
A Postmark alternative built for EU data sovereignty.
Postscale is operated in Estonia and hosts primary production service data in the EU/EEA. Postmark contracts through a US company and says its primary data and servers are 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 the operator, primary hosting location, and documented retention boundary.
Primary data location
- Postscale
- Primary production service data is hosted in the EU/EEA.
- Postmark
- Postmark says its primary data and servers are hosted in the United States and that it has no EU servers.
Message retention
- Postscale
- Retention is documented in the DPA and service configuration for the relevant data category.
- Postmark
- Postmark says email content and metadata are retained for 45 days by default; suppression records are retained longer.
CLOUD Act consideration
- Postscale
- The operator is an EU company. Disclosed subprocessors and transfer safeguards still belong in your review.
- Postmark
- Postmark's US operator is within US jurisdiction. US law can reach data a covered provider controls even when stored abroad.
Verified 11 September 2026.
Postscale DPAPostmark termsPostmark EU privacy18 U.S.C. § 2713
Frequently asked questions
Does Postmark host data in the EU?+
No. Postmark's EU privacy page says its primary data and servers are hosted in the United States and that it has no EU servers. It relies on contractual and organizational safeguards for European customers.
Who operates Postmark?+
Postmark's current terms identify AC PM, LLC as the contracting company and specify a US address and Illinois law. This makes operator jurisdiction different from Postscale's Estonian operator.
How long does Postmark keep message data?+
Postmark says email content and metadata are retained for 45 days by default. It also documents longer retention for suppression records. Check its current privacy documentation for the categories relevant to your use case.
What does the CLOUD Act mean here?+
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 stored outside the United States. It does not provide automatic government access, but operator jurisdiction remains relevant.
Does Postscale replace every Postmark feature?+
No. Postscale covers transactional sending, inbound rules, masked addresses, authentication, and deliverability. Postmark also supports broadcast message streams, so keep a marketing tool if that workflow is required.
How do I migrate from Postmark?+
Verify a Postscale domain, replace server tokens and API calls or SMTP credentials, import suppressions, map templates and webhooks, test delivery and inbound flows, and then shift traffic gradually.
Move product email under an EU operator.
Open a Postscale account, verify a domain, and test your sending and inbound workflows.