Written and reviewed by the team operating TempMail Cloud. Product claims are checked against our live service and our editorial standards.
Check the complete email address on the verification screen, open that exact inbox, and clear any search or message filters before requesting another OTP. If the sender explicitly rejects the address, an inbox refresh will not help. If it accepts the request, follow its waiting period and make one controlled resend.
A "code sent" notice is useful information, but it is not proof that the receiving mailbox has the message. Email can be delayed or refused along the delivery path. SMTP distinguishes acceptance, temporary failures and permanent failures; those outcomes are normally visible to the sending system, not to the person waiting in an inbox. SMTP specification.
Find where the process stopped
| What you observe | Most useful check | Next action |
|---|---|---|
| The website rejects the address before sending | Address format and the sender's email policy | Correct a typo or use an address the sender permits |
| The website shows a partly hidden destination | Whether its visible letters and domain match your mailbox | Correct the destination on that website if allowed |
| Your inbox has a search or category filter active | Whether the message is hidden by the current view | Clear search and return to all messages |
| One sender's email is missing but other mail arrives | That sender's delivery, restrictions or cooldown | Ask that sender to inspect the request |
| Expected mail from several senders is missing | Exact inbox, session, domain and receiving availability | Record times and contact receiving support |
| A code finally arrives but fails | Which request it belongs to and whether it expired | Follow the expired-code guide |
The table narrows the next investigation. It does not identify a cause with certainty from a single missing email.
Check the full address before doing anything else
Compare the local name and everything after @ character by character. A saved name on one domain is not the same inbox as that name on another domain. Watch for browser autofill restoring an older address or the website still targeting the address you used at registration.
In TempMail Cloud, Regenerate Email creates a different address. It does not redirect mail already sent to your previous one. If you regenerated while waiting, use the profile's saved inboxes or Login with the earlier address and its credentials. If you cannot reopen it, follow inbox recovery before changing the sender's destination again.
Inspect the inbox without assuming a spam folder exists
Open all messages, remove any search text, and refresh. Search by the expected service or sender if the inbox contains many messages; an OTP subject may not contain the word "code." Read the relevant message rather than relying only on an automatically extracted number, which could be another number in the email.
TempMail Cloud exposes search and message-category filters. Do not spend time looking for a Gmail-style spam folder that this interface does not offer. If you are checking Gmail or another full email client instead, inspect that provider's spam, trash and filtering controls as appropriate.
If the inbox itself reports an access error, resolve that separately. An empty authorized inbox and a page that cannot load messages are different problems.
Worked example: the address changed during a resend
You enter inbox A into a website at 09:10, then select Regenerate Email and see inbox B. At 09:12 you press resend on the original website without changing its destination.
That resend still targets A. Waiting in B will not reveal it, even though both inboxes work. Return to A, or deliberately update the destination on the sender's site if its workflow allows it. Then request one message to the newly confirmed destination. These times are illustrative, not an observed service incident.
Resend once the sender allows it
Respect the cooldown shown on the verification screen. Request one fresh message, note the time, and avoid starting parallel attempts. Frequent requests may lead to rate limits or overlapping messages; the sender decides whether a later request invalidates an earlier code.
If delivery keeps failing, use the sender's alternate verification or official support route. Do not create more accounts or rotate domains to evade a stated restriction. Our blocked temporary-email guide explains the distinction between a policy rejection and an unexplained delivery failure.
What to include in a delivery report
Send TempMail Cloud support the affected receiving address, sender domain, approximate request time and time zone, the sender's visible status, and whether other expected messages arrive. If you are the sending application's developer, inspect its mail-provider events for the recipient and any rejection or deferral status.
Do not include active OTPs, setup secrets, passwords or complete recovery links. We can investigate receiving behavior; only the sender can issue another valid code or decide whether to verify your account. If the website asks for an SMS code or authenticator code, this email inbox is not the destination for it.