Why your temp mail inbox looks empty
We run TempsMail, and the single most common message that reaches us is some version of this: "I opened the inbox, the code never arrived, is your site broken?"
Almost always, the site is fine. Something else happened — and it's usually one of six things. This is the list we work through ourselves when someone writes in, in the order we check it. Work through it the same way and you'll find your answer in about two minutes.
first: are you looking at the same inbox you signed up with?
This causes more lost codes than every other reason combined.
A temp mail address lives in your browser session. Close the tab, open the site again later, and you may be handed a new address. The old inbox didn't break — you're just standing in front of a different mailbox asking why your letter isn't there.
So before anything else, compare character by character: the address shown on your screen right now, against the address you actually typed into the signup form. If you can't remember what you typed, check the signup page itself — most of them display the address they sent to, somewhere near "we've emailed a code to…".
If they don't match, that's your answer. The mail went to the old address, and if that address has expired, it's gone.
second: give it ninety seconds, then refresh deliberately
Mail isn't instant. A sender's queue, a spam-scoring pass on their side, and the hop to our servers all add seconds. Under normal load most messages land in under thirty seconds, but ninety is not alarming.
What trips people up is the refresh. Our inbox polls on its own, but if you've left the tab in the background for a long stretch, browsers throttle background timers to save battery. The page can sit there looking idle while mail is actually waiting. Click back into the tab and hit refresh once, by hand.
One refresh. Hammering the button doesn't make mail arrive faster, and on a slow connection it can leave you watching a half-loaded list.
third: check whether the sender rejected you before sending anything
This is the one people don't think of, and it's the real cause more often than you'd guess.
Plenty of services keep lists of disposable-mail domains and refuse to send to them. The tell is in the timing and wording on their side, not on ours:
- the form threw an error straight away — "please use a valid email address", "this email provider isn't supported"
- the form appeared to succeed but you never got a confirmation screen
- you got a success message instantly, with no "check your inbox" step at all
If any of those happened, no mail was ever sent. No inbox on earth would show it. We wrote about why some platforms do this, and which ones tend to, in our piece on temp mail for one-time codes.
fourth: the message may have arrived and already expired
We keep received mail for five days. After that it's deleted, and we can't recover it — there's no archive, no backup copy, no support ticket that gets it back. That's deliberate, and it's a big part of why the service can stay free and anonymous. Nothing lingers.
So if you're coming back to an inbox after a week to retrieve an old receipt, the honest answer is that it's gone. Not hidden, not in a trash folder. Deleted.
This is the thing to think about before you use a disposable address, not after. If the message is something you might want next month — an invoice, a licence key, an account recovery path — a temp address is the wrong tool. Use one you own.
fifth: oversized mail and attachments
Some senders push very large HTML emails or heavy attachments. Those take longer to accept and process, and occasionally a sender's own system gives up partway through the handoff and never retries.
If you're waiting on something with a big attachment rather than a short code, extend your patience to a few minutes before you conclude anything. And if it's a file you actually need to keep, download it the moment it lands — remember the five-day clock.
sixth: you're on a filtered network
Office Wi-Fi, school networks, and some mobile carriers block temp-mail domains at the DNS level. The symptom is specific: the page loads slowly or not at all, or it loads but never pulls new mail.
Quick test — switch off Wi-Fi, use mobile data, and load the inbox again. If it suddenly works, the network was the problem, not the mailbox.
when the inbox being empty is the right outcome
It's worth saying plainly: sometimes an empty inbox is the system working correctly, and the fix isn't technical.
If you're trying to recover an account you originally registered with a disposable address months ago, the mailbox is long gone and so is the account. We get these messages weekly and there is nothing we can do from our side — we hold no record tying an old address back to you. That's not us being unhelpful. There genuinely is no record.
If you're trying to use a temp address for a bank, a government portal, or anything with real money attached, an empty inbox today is the least of your problems. Those accounts need an address you'll still control next year.
We've written the longer version of this argument in is temp mail safe, including the parts that make us look bad.
what to do next time
Three habits remove nearly all of this friction:
- Copy the address, don't retype it. One wrong character and the mail goes somewhere real, to a stranger.
- Keep the tab open from signup until the code arrives. Don't close it, don't navigate away.
- Act on the message the day it arrives. Click the link, use the code, save the file. Treat the inbox as a doorway, not a drawer.
If you only need a mailbox for the length of one signup, our 10 minutes mail page is built for exactly that — open it, use it, forget it.
frequently asked questions
Why does my temp mail inbox show nothing at all?
Most often you're looking at a newly generated address rather than the one you signed up with, or the sender refused to deliver to a disposable domain and never sent anything. Compare the address on screen against the one on the signup form first.
How long do messages stay in the inbox?
Five days. After that they're deleted permanently, with no backup and no way for us to restore them.
Can you resend a code that never arrived?
No. We don't send the codes — the service you signed up with does. If nothing reached us, there's nothing for us to forward. Ask that service to resend it.
Can I get back a message from an inbox I used last month?
No. It was deleted after five days, and we keep no copy. If you need a message to survive, use an address you own.
Why does it work on my phone but not on office Wi-Fi?
Many workplace and school networks block disposable-mail domains at the DNS level. Switching to mobile data is the fastest way to confirm that's what's happening.
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