xopine.eu

Where messages meet.

Xopine is a relay for incoming email. There is no shop here and nothing to sign up for. The domain exists to receive mail, and to keep one private inbox out of sight.

A public doorstep for a private inbox

The addresses on this domain are not where mail ends up. They are the hollow in the tree: a place to drop a letter. The inbox that finally reads it stays somewhere else, and its address is never handed out.

  1. A sender writes to an address at xopine.euA shop, a newsletter, a service. Each one gets its own address.
  2. relay.xopine.eu receives itThe relay accepts the message and decides what happens next.
  3. The private inbox receives a copyIts real address never appears to the sender.

The real address stays hidden

Senders only ever see a relay address. A data leak at one of them exposes that address, not the inbox behind it.

Leaks are easy to trace

When every service gets its own address, unexpected mail shows exactly who passed it on.

One address can be closed

If an address starts attracting spam, it is switched off. The inbox and every other address keep working.

Received: from mail.example-shop.eu
        by relay.xopine.eu with ESMTPS
To: shop-2026@xopine.eu
→ delivered onward to a private inbox (address withheld)

An illustration of how the relay step appears in a message header.

You will rarely see Xopine. That is the point.