1. Make one

From your dashboard, press create. You can let us generate the name or type your own in front of the domain.

A good habit is naming it after where it is going, so that when mail turns up somewhere it should not, the address itself tells you who leaked it. There is more on that in Naming an alias so a leak names itself.

2. Give it out

Use it wherever you would have used your real address: a shop, a forum, a newsletter.

Mail sent to it arrives in the inbox you already read, on the same phone and the same app. Nothing about your existing setup changes.

3. Reply as normal

Press reply and write as usual. Your answer leaves as the alias, and your own address never appears in the headers.

4. Switch it off when it goes bad

If an address starts attracting things you did not ask for, turn it off. The noise stops at our servers, and every other address you have keeps working.

That is the whole product. Everything else, the browser extension, your own domains, rules, the mailbox, is convenience on top of those four steps.

What to expect in the first month

A new account is held to a few sensible limits: thirty aliases in total, thirty new ones a month on our shared domains, and no writing to strangers for the first thirty days. None of them are permanent and none of them need a request to lift. They exist because accounts opened only to send junk get our domains blocked, which would break every alias for every user at once. What the limits protect explains each one.