Contracting operator
- Postscale
- DNScale OÜ, an Estonian company.
- SendGrid
- Twilio says the contracting entity depends on customer location. SendGrid legal requests are handled through Twilio Inc.
A SendGrid alternative built for EU data sovereignty.
Postscale is operated by DNScale OÜ in Estonia, with primary production service data hosted in the EU/EEA. SendGrid offers EU Data Residency, but it must be configured on EU subusers and remains part of Twilio's global service.
Operated by an EU companyEU/EEA-hosted primary service dataStandard GDPR DPA and documented subprocessors
The data-sovereignty differences.
Focus on the operator, the scope of EU residency, and what still crosses the regional boundary.
Service-data location
- Postscale
- Primary production service data is hosted in the EU/EEA by default.
- SendGrid
- EU Data Residency can keep recipient PII, email content, and event data in EU data centers.
Regional boundary
- Postscale
- There is no regional subuser or endpoint choice for the primary hosting posture.
- SendGrid
- EU residency requires an EU subuser and EU endpoints. Twilio documents global support access and other boundary exceptions.
CLOUD Act consideration
- Postscale
- The operator is an EU company. Disclosed subprocessors and transfer safeguards still belong in your review.
- SendGrid
- Twilio has US operations and a US legal-request channel for SendGrid. Review which entity has possession, custody, or control of the data.
Verified 11 September 2026.
Postscale DPASendGrid EU residencyEU residency locationsTwilio termsTwilio legal requests18 U.S.C. § 2713
Frequently asked questions
Does SendGrid offer EU data residency?+
Yes. Twilio says SendGrid Email Data Residency can keep recipient PII, email content, and event data in EU data centers. That is a meaningful control, not merely an EU sending region.
Is SendGrid's EU residency automatic?+
No. Twilio documents a separate EU Data Resident subuser, EU API and SMTP endpoints, and migration steps for existing configurations. It also warns that requests sent to the wrong endpoint may be processed outside the EU.
What remains outside the SendGrid EU boundary?+
Twilio documents global engineering and support access, plus specific operational exceptions. Its location documentation should be checked against your account design, support workflow, and deletion requirements.
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 when the data is stored abroad. It does not provide automatic government access. For SendGrid, review the contracting entity and Twilio group access together.
Does Postscale replace every SendGrid feature?+
No. Postscale focuses on transactional sending, inbound rules, masked addresses, authentication, and deliverability. SendGrid also provides marketing campaign tooling, so keep a marketing platform if that workflow matters.
How do I migrate from SendGrid?+
Verify a Postscale domain, replace the REST endpoint and API key or SMTP credentials, import suppressions, translate event and inbound webhooks, test both paths, and then move production traffic gradually.
Move product email under an EU operator.
Open a Postscale account, verify a domain, and test your sending and inbound workflows.