The sender may reject temporary domains
Check the sender’s error message and terms of use. For ongoing contact, switch to a forwarding address instead of repeatedly changing addresses to bypass the restriction.
Troubleshooting · Start with the most likely cause
Each resend can invalidate the previous code and may trigger sender rate limits. Check the address, session, and sender status in the order below—it’s usually faster than creating a new mailbox.
Check that the page confirms successful sending—not an invalid email format, a rate limit, or an unsupported address.
Compare the address you submitted with the one shown in the Emailsee address bar. Pay close attention to the prefix, domain suffix, and any spaces added during copying.
Once the countdown reaches zero, the old address can’t receive new mail. If the session is still active, don’t switch addresses prematurely out of worry.
Automatic checks will continue, but a manual refresh immediately requests the latest message list and provides visible feedback.
Major events or login peaks can cause delays of several minutes. Keep the page open, wait 2–5 minutes, then refresh.
After resending, use only the verification code in the newest email. Repeated clicks may trigger the sender’s cooldown and invalidate an earlier code.
Different symptoms point to different failure points. Don’t use the same action for every “not received” situation.
Check the sender’s error message and terms of use. For ongoing contact, switch to a forwarding address instead of repeatedly changing addresses to bypass the restriction.
When a delayed queue clears, older codes may arrive together. Usually, only the code from your latest request is valid.
Check the sender’s domain and the source of the request. If you didn’t initiate the action, ignore the email and end the session.