About

A plain tool for a noisy category.

Mailionaire exists because setting up sending infrastructure for cold email is tedious, easy to get wrong, and full of providers that over-promise.

What we build

We provision real, isolated Microsoft 365 mailboxes, configure their DNS, and keep them healthy by replacing the ones that wear out. We are built and run in Switzerland, with optional EU/Swiss data residency. One price per domain, one invoice, no per-mailbox metering.

How we talk about it

We try to describe the product the way we would want it described to us. European infrastructure is a real benefit for data residency and for sending to European recipients — and it is not a licence to ignore consent law. We say so plainly, even when a louder claim would sell better.

Who runs it

Mailionaire is built and run in Switzerland. The operating legal entity is named in our legal notice. Questions, including data-processing and billing details, go to support@mailionaire.ch.