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    Postscale

    Postscale is an Estonian developer-focused email infrastructure platform providing transactional APIs and inbound processing with EU data residency.

    EEEstonia
    Headquarters
    🇪🇪Estonia
    Data Hosting
    EU-based
    Structure
    Independent
    Compliance
    â–£GDPRâ—†EU HQâ–¦EU Data

    Postscale key facts

    Last updated
    Legal entity
    DNScale OÜ
    Headquarters
    Estonia (EE)
    Ownership
    Independent
    Open source
    No
    US Cloud Act exposure
    Low (no US parent)
    Replaces
    Resend, Postmark, SendGrid, Mailgun, Amazon SES

    About Postscale

    Postscale is a European email infrastructure company based in Estonia, specifically designed for developers and engineering teams. It provides a single API for critical email workflows, including transactional sending, inbound processing, and privacy-preserving masked aliases. The platform positions itself as a sovereign EU alternative to US-based providers like Resend and Postmark, emphasizing GDPR-native operations and primary data hosting within the EU/EEA. The service includes features such as REST and SMTP relay support, delivery webhooks, and the parsing of inbound messages into structured JSON. Its privacy-focused product, Postscale Shield, allows businesses to embed 'Hide My Email' style capabilities into their own applications. Postscale is built for scalability and compliance, offering dedicated tools for businesses migrating from legacy email providers to a more privacy-centric, European infrastructure.

    Alternative to

    ResendPostmarkSendGridMailgunAmazon SES

    Key Features

    Transactional Email API (REST/SMTP)
    Inbound Email processing to Webhooks
    Masked Email Aliases (Postscale Shield)
    Delivery Webhooks
    DKIM and DMARC handling
    Templates management and previewing
    Message-stream and suppression-list mapping

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