About CrazyMailing

CrazyMailing is a disposable email service operated by a small independent team. There is no support department and no investor deck. The people who write these pages are the same people who watch the mail queue and decide which domain gets retired next, which is why the guides here read like field notes rather than marketing.

What the service actually does

It accepts mail. That is the entire mechanism, and stating it that plainly rules out most of what people assume. An address on one of our domains is live the moment it appears on your screen, our servers take delivery of anything sent to it, the message is stripped of scripts and remote content before it is rendered, and it lands on the page over a connection that is already open rather than by the browser asking again and again.

Then it expires. Nobody at this end reads your mail, and the design makes that commitment cheap to keep: the contents are deleted on a short clock and were never attached to a name.

Why this site explains the other side of the signup form

Any number of sites will hand you an address. Very few will tell you what happens to it after you paste it into a form, why the form sometimes rejects it on the spot, and who made that decision.

We are in an odd position to explain that, because we are the ones being detected. We watch our own domains get sampled, land on public lists and start failing at particular forms, and we can see how long each stage takes. The material on how detection works and how the blocklists are assembled comes out of that, not out of a keyword tool.

Nine domains and a burn rate

Nine public domains are in rotation as this is written, and the figure moves. Each of them wears out on the same path: it gets noticed, it lands on the lists that signup forms consult, and from that point a growing share of websites refuses it. We take it out of circulation and put another one in.

That burn rate is not a defect in the operation, it is the operation. The only honest way to run this is to budget for domains going dead rather than to promise that the address you copied today will still be accepted in the spring. Registered accounts draw from domains we never publish anywhere, which slows the process down rather than escaping it.

How it is paid for

Advertising, and nothing else. There is no paid tier, no trial countdown and no upgrade page, so nothing here is deliberately broken in order to sell you the version that works. We set out the four business models behind free throwaway mail, because knowing which one a service runs on tells you what its operator wants from you.

The limits we are not going to pretend away

You cannot send mail from here. Not today and not in a later version. A service that lets anonymous strangers send becomes a spam relay within about a week, and the blocking that follows would take the receiving half down with it.

A guest mailbox is not private. The address is the only key to it, short addresses get guessed, and the inbox opens for whoever types the right one. If what arrives would bother you in a stranger's hands, sign in and use an account mailbox instead.

Domains fail without warning. A form that took your address last month can refuse it today, and there is no appeal to make, because the refusal is a third party's decision about a list we have no relationship with.

It is the wrong tool for anything you must get back into. Banking, government portals, employment, shipping, domain registration, cloud storage: a recovery address has to outlive the account it protects, and every address here is built to do the opposite. The disclaimer covers that in full.

Bugs, abuse reports and corrections go to the contact page. Corrections in particular are welcome: we would rather fix a wrong sentence than argue with the person who spotted it.