About PostStack
PostStack is a Danish email API platform for European developers. We run our own infrastructure in Helsinki, Finland and sell it for a fraction of what US providers charge.
Built for developers
A clean REST API, TypeScript/Python/Go SDKs, and documentation that gets you sending in minutes instead of days.
European infrastructure
EU data centre in Helsinki, Finland, operated by a Danish company under EU jurisdiction. Your customer data never leaves Europe.
Deliverability by default
SPF, DKIM, and DMARC are configured automatically when you add a domain. Bounce processing, reputation monitoring, and RFC 8058 one-click unsubscribe are built in.
Predictable pricing
Month-to-month billing, no contracts, no hidden fees, and no overages you did not approve. Up to 72% cheaper than Resend, SendGrid, and Postmark for the same feature set.
Who runs PostStack
Michael Andersen
Founder, PostStack
Solo founder. PostStack is run from Copenhagen by one person who handles product, infrastructure, and operations end-to-end. Background in self-hosting Postfix and Dovecot, deliverability engineering for high-throughput senders, and backend systems on Bun, TypeScript, and PostgreSQL.
The blog posts under /blog are written by me directly — no ghostwriting, no marketing agency. If something looks wrong, reply to support@poststack.dev and it will reach my inbox, not a queue.
Contact
MICCI — CVR/VAT: 45587452