Compare API and SMTP sending, inbound workflows, pricing, and data location. Postscale combines product email under an EU operator with EU/EEA-hosted primary service data; Resend offers sending, receiving, React Email integration, and marketing tools with US-stored service data.
Both services send and receive email. Compare your monthly volume, integration requirements, and data-location needs before switching. Prices below are monthly list prices in their original currencies; check taxes and overages separately.
You need an EU contracting operator, EU/EEA-hosted primary service data, and application sending plus inbound routing, forwarding, or masked aliases. Review the DPA and subprocessors against your exact data and access requirements.
You depend on its hosted React Email workflow, Broadcasts, or existing integrations, and its documented US storage fits your requirements. Postscale is not a drop-in replacement for those tools or a hosted mailbox.
Map payloads, reconfigure webhooks, import suppressions, and stage your traffic switch.
Try a synthetic Resend payload before changing production code. Review the output and unsupported fields.
Include inbound volume, recipients, plan limits, overages, and taxes in your estimate.
No. Map html/text to html_body/text_body, translate tags, change credentials and webhook verification, and test your template and receiving flows. Postscale sending endpoints do not support Idempotency-Key; do not carry over automatic retry assumptions.
Yes, if you render templates to HTML in your application and send that output as html_body. Resend's hosted template editor and React Email integration are separate workflows that do not migrate automatically.
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.
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.
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.
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.
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.
Create an account, test the API, and complete account approval and sending-domain verification before moving live traffic.