Blog
Engineering notes and product updates — how we run email infrastructure in the EU, and what we're building next.
engineeringHow eusend keeps your email data in the EU
A tour of the infrastructure behind eusend — why every piece of it runs on servers we operate ourselves, inside the EU.
Sivert· Jul 14, 2026SivertFounderBuilding eusend — self-hosted email infrastructure that never leaves the EU.
engineeringPinning webhook deliveries against DNS rebinding
How a webhook URL that resolves to a public IP at validation time can point somewhere private at connect time — and how we closed that gap.
Sivert· Jul 12, 2026SivertFounderBuilding eusend — self-hosted email infrastructure that never leaves the EU.
companyHello, world: why eusend has a blog
Sivert· Jul 10, 2026SivertFounderBuilding eusend — self-hosted email infrastructure that never leaves the EU.