OKX If you do not receive a verification code, first determine whether the issue is a missing email/SMS message or an error with your authenticator app code. For email, check your spam folder, receiving filters, and mailbox storage. For SMS, check blocked messages, your phone line, and carrier status. If the screen displays Sending failed, the official guidance says to wait one hour before retrying for email and about two hours for SMS. These are not blanket waiting periods for every case of nonreceipt; follow the error message and countdown shown on your screen.
Reviewed: 2026-10-10. The waiting conditions and recovery guidance below were checked against the OKXofficial verification code help. The troubleshooting sequence and support inquiry checklist are explanations prepared by AKEYX. This article does not provide methods for bypassing verification restrictions.
1. First determine which code is being requested
Email and SMS verification codes are sent to the contact information you registered after you request them. One-time codes from an authenticator app are generated on your device, so waiting for a text or email will not resolve the issue. Verification required during sign-up may also differ from login or withdrawal verification for an existing account. Start by checking the method shown on the screen and comparing it with the partially masked email address or phone number.
| Verification method shown on screen | What to check first |
|---|---|
| Recipient address, spam folder, receiving filters, mailbox storage | |
| SMS | Country code and recipient number, blocked messages, SIM and carrier status |
| Authenticator app | Correct account entry and currently generated code |
The key point of the table is to troubleshoot message delivery problems separately from problems with a generated code being rejected. A referral code OKDCC links a sign-up referral; it is not an identity verification code. Do not enter a referral code or anti-phishing code in an OTP field.
For overall terms of use and feature-specific guidance, see the OKXcomprehensive guide. If an authenticator app code is rejected, see Authenticator App Setup, Errors, and Recovery.
2. If you do not receive an email verification code
- Check that the recipient address shown on the official screen is an address you use. First rule out a typo or an address belonging to another account.
- Check your spam, junk, and automatically sorted folders, and review sender blocks and automatic deletion filters.
- Check whether your mailbox storage is full. Do not check only your inbox; check the service's receiving status as well.
- If needed, add the sender addresses listed in the official help materials to your allowlist. After doing so, wait 10 minutes before making another request, as instructed.
The sender address listed in the current official help materials is noreply@mailer1.okx.com, noreply@mailer2.okx.com, noreply@service2.okx.com, noreply@service3.okx.com__. Do not assume an email is genuine based only on the displayed address or its presence on an allowlist. It is safer to review the process again in the official app or by manually entering okx.com rather than using a link in the email.
You can check the app version and look for updates through official distribution channels. However, do not start by deleting app data or reinstalling an authenticator app or wallet on the device. Deleting it without a backup could cause you to lose recovery information or access. Never send a wallet seed phrase or private key as part of a support inquiry.
3. If you do not receive an SMS verification code
- Check that the country code and recipient number shown on the screen are correct. Make sure you are not waiting for a message on a number different from your registered contact number.
- Restart your phone and check your message storage, blocked messages folder, and any SMS filters in security apps.
- If you use dual SIM, check that the line for the relevant number is enabled and can receive text messages.
- If you recently ported your number or are experiencing carrier issues, ask your carrier about your ability to receive verification texts. Do not repeatedly request a code when it is unclear whether one was sent.
OKX The official help materials state that SMS codes are valid for 10 minutes. This does not mean that email or authenticator app codes have the same validity period. The same materials explain that entering an incorrect SMS code six times within a certain period may lock the account, but they do not specify that period as a particular number of minutes. Do not guess codes or make repeated requests.
4. The waiting time before requesting another code depends on the error type
| Situation confirmed | Next step in the official guidance |
|---|---|
| Email sending failed | Wait one hour, then try again |
| SMS sending failed | Wait about two hours, then try again |
| After adding the email sender address to your allowlist | Wait 10 minutes, then request another code |
| Code entry error or code expired | Check the verification method and countdown on screen; stop repeated incorrect attempts |
“It hasn’t arrived” and “It can’t be sent” are not the same status. For general nonreceipt, first check the delivery path; apply the relevant waiting guidance only if a sending failed message is confirmed. If the account screen displays another restriction or instruction, follow that first. Requesting codes at short intervals can make it harder to determine the cause of an error.
5. If you cannot access your registered contact information, separate delivery troubleshooting from account recovery
If you can no longer use your email address or phone, changing spam folder or text message settings will not solve the problem. From the login screen for your existing account, check the recovery options actually offered in the official help materials, such as Forgot your password → Unable to verify. Do not assume that the process for a screen during sign-up, where an account has not yet been created, is the same as the recovery process for an existing account.
Alternative verification methods or trusted devices may be offered, but the same options are not available for every country or account. Use only methods allowed on the actual screen. Do not use someone else's number or identity, duplicate accounts, or a VPN to bypass eligibility, regional, or security restrictions. Do not pay verification or unlocking fees requested by unofficial support.
The official help materials state that withdrawals and P2P transactions may be restricted for 24 hours after a phone number is changed or removed. This restriction is separate from the roughly two-hour wait for SMS sending failures. Changing your verification method does not guarantee that withdrawals will be available immediately or that recovery will succeed; check the restrictions and review status shown on your actual account.
6. Information to provide to official support if the issue remains unresolved
Instead of repeatedly requesting another code, organize the details of the error so you can make a specific support inquiry. Contact support only through the official app or the customer support page on okx.com, which you access directly. Do not send account information to anyone claiming to be a “support agent” on a public forum or messaging app.
- App version and device and verification method used
- A screenshot showing the exact error message and current countdown
- Time of the request and time zone, and troubleshooting steps already taken
- The registered contact information affected by the issue—share it only through an official support channel if necessary
Make sure screenshots do not show verification codes, passwords, recovery codes, seed phrases, or private keys. In publicly shared materials, also hide email addresses, phone numbers, and account identifiers. Do not substitute telling a support agent your code or giving them remote access for verification. For checking whether an email is genuine, see Anti-phishing Code and Sender and Link Verification Guidance.
Frequently Asked Questions
Will waiting two hours resolve every case of not receiving a verification code?
No. The roughly two-hour wait is the retry guidance in the official help materials for the SMS sending failed situation. Email sending failures have a separate one-hour wait, while general nonreceipt calls for first checking the address or phone number and receiving filters. Waiting alone does not guarantee that the issue will be resolved or that a code will arrive.
Are authenticator app codes sent by email or text?
One-time codes from an authenticator app are generated on your device. If the screen asks for an authenticator app code, do not wait for an email or SMS; check the correct account entry and current code. Do not enter a code from a different verification method instead.
Can I request an SMS code multiple times?
Do not make repeated requests at short intervals or guess codes. Follow the countdown and error guidance on the screen, and apply the relevant waiting period if a sending failure is confirmed. If the issue persists, note the request time and error screen and contact official support.
Can I withdraw immediately after changing my phone number?
You cannot assume that. The official help materials state that withdrawals and P2P transactions may be restricted for 24 hours after a phone number is changed or removed. Check the status of your verification recovery separately from the restrictions shown on your actual account.
Should I send a verification code or seed phrase to customer support?
No. Do not share verification codes, passwords, recovery codes, seed phrases, or private keys as part of a support inquiry. Provide official support with details of the error and any account verification information they need, and do not post personal information through public channels.
Official references and checks before use
OKX: I haven’t received the verification code — email and SMS troubleshooting, waiting periods for sending failures, SMS code validity, recovery options, and restrictions after changing a phone number. The official page lists a revision date of 2026-08-26; the corresponding items in this article were reviewed on 2026-10-10.
Menus, supported methods, and regional requirements may change, so the actual verification screen and the latest official guidance are authoritative. This article does not guarantee recovery, access, or withdrawals for any individual account. Do not make unnecessary deposits or trades to resolve verification issues. Digital asset trading involves the risk of loss, and security verification does not eliminate market risk or liquidation risk.