Temp Mailbox
Open a temp mailbox in one click. Mail appears without refreshing, the inbox deletes itself, and your main mailbox stays out of it.
generating...Nothing here yet. Mail sent to this address lands on the page by itself, with no refresh.
Your inbox is open
The address at the top of this page is live and already accepting mail. Copy it, paste it wherever an address was demanded, and whatever arrives will show up below on its own.
Nothing to install, no account, no waiting. If you want a name you can remember, type one in before you use it.
One compartment of your mail, not a replacement for it
You already have a mailbox you actually read. This one sits next to it and takes a specific job off its hands: the signups that only ever needed to send you one message.
That framing matters more than it sounds, because it decides what belongs here and what does not. A discount code, a download link, a forum registration, a one-time verification: these arrive, get used, and are never wanted again. Meanwhile your real address stays out of the databases those signups feed, and your real inbox stays free of what those databases generate for years afterwards.
What this is not is a second permanent mailbox. Everything here expires by design, and the rest of this page is mostly about drawing that line clearly enough that you never cross it by accident.
What arrives here and how you see it
Mail is not fetched by asking the server over and over. The page holds one open connection and the server pushes a message down it the moment it lands, which is why a verification code turns up about as fast as it would in a normal mail app, and why leaving this tab open costs you almost nothing.
Every message is rendered inside an isolated frame with scripts stripped out. Marketing mail carries tracking pixels and active content as a matter of routine, and a service that displayed all of it faithfully would be handing your browser to whoever sent the message. Attachments are held separately and are available once you sign in.
The clock
A guest mailbox lives twenty four hours from the last time you used it, and asking for a new address deletes the previous one immediately. Not in an hour, not at midnight: at that moment. Copy out anything you still need before you click.
With a free account the numbers change. A mailbox survives seven days from your last sign in, and a message is kept up to thirty days. Nothing is archived, nothing is backed up, and a deleted mailbox cannot be recovered by us or by anyone else. That is the design, not a limitation waiting to be fixed.
One more consequence worth knowing: an address that expires goes back into circulation. Someone else can eventually be handed the same name, which is another reason not to leave anything important pointing here.
What never belongs in this box
Three rules, and they cover almost every bad outcome people have with services like this one.
Never as a recovery address. If a site can email you a password reset, that email has to arrive at a mailbox that still exists when you need it. This one will not.
Never on an account with money or purchases attached. Orders, refunds, warranties, subscriptions and anything with a card behind it generate mail you will want months later, and support cannot help someone who cannot prove the account is theirs.
Never on a device or a service you keep. A router, a thermostat, a console, a cloud drive: hardware and subscriptions outlive throwaway addresses by years, and the first factory reset turns a missing mailbox into a locked device.
Also worth saying plainly: a guest mailbox here is not private. The address is the only key, and short names get guessed by people poking at the service. For a discount code that is fine. For anything you would mind a stranger reading, sign in and use a private mailbox.
What a free account adds
Four things, all free, with no paid tier behind them and none planned.
Domains that are not published on the front page, which matters because an unpublished domain reaches the blocklists later than a public one. Ten mailboxes at a time instead of one. Attachments. And mailboxes that belong only to you rather than to anyone who knows the address.
That last one is the real upgrade. Everything else is convenience; privacy is a different category.
Receiving only, and that is permanent
You cannot send mail from an address created here, and that will not change. Any service that lets anonymous users send becomes a spam relay within days, and its domains are blocked everywhere within weeks, which would take the receiving side down with them. The restriction is what keeps the rest working.
The same reasoning rules out an API. Automated address generation burns domains faster than anything else, and every domain burned that way is one fewer working address for people using the site by hand. The domain of this website is not handed out by default for a related reason: it is the most exposed name we have, and it wears out first.
If the problem is your main mailbox
Plenty of people arrive here because their real inbox has become unusable, and a throwaway address only stops that getting worse. Fixing what is already there is a separate job, and the guides cover it.
If mail you wanted keeps vanishing, start with where your provider files it. If the volume is the problem, the honest mechanics of getting off mailing lists explain why some senders keep writing after you unsubscribe and what actually stops them. If you are wondering how many addresses a person should have in the first place, that has a real answer. And if you already used a throwaway address somewhere you should not have, there is a recovery order that sometimes works.
Guides
How Many Email Accounts You Need
Most people need two mailboxes and end up with five. What each extra account costs to run, and how to split them so the split holds.
Folders, Labels and Search
Folders lose to search for finding things and win at three specific jobs. A four folder scheme that survives a busy week.
Filters and Rules That Hold Up
Rules break because they match on the subject line. How to filter on the sender and the headers, in what order, and how to test one.
Getting Off Mailing Lists and Staying Off
What the unsubscribe link does after you click it, why senders get ten days, and what to do with the ones that keep mailing anyway.
The Junk Folder and the Mail You Never Saw
Your provider files wanted mail out of sight and tells you nothing. Where to look, how to get it back, and which settings actually stick.
When the Mailbox Runs Out of Space
A full mailbox stops accepting mail and only the sender is told. How to find the gigabytes and what is genuinely safe to delete.