Proton Mail

Proton Mail sells business mailboxes on a customer’s own domain, from Proton AG in Geneva, with end-to-end encryption as the thing being sold rather than a feature of it. Business plans run from mail and calendar alone up to bundles carrying storage, documents, a VPN and a password manager, each tier allowing more custom domains than the last.

Worth knowing

No price is recorded here, and not because none is published: the business pricing page renders its figures only after a region is chosen, so nothing could be read off it directly. The plan names and the domain allowances are on the page; the numbers are not.

Mail is the whole product. Nothing of a customer’s runs, which is why the runtime, deployment and shell rows read as not applicable, and the site this serves lives on a host elsewhere.