Thank you for choosing LBank! If you can't register your email, it may be due to LBank's deduplication rules, incorrect format, or restricted domain. We've upgraded our email registration system to prevent duplicate accounts and risky behaviors. This article covers why registration may fail, deduplication rules, and solutions to help you register successfully.

LBank's Email Deduplication Rules

To ensure each user can only register one account per email address, LBank has implemented strict deduplication verification rules, optimized for the specific behaviors of certain email service providers. Below are LBank's deduplication rules:

1. Ignoring Periods (.):
   Some email providers ignore periods (.) in usernames. For example, [email protected] and [email protected] are treated as the same email. LBank removes all periods from the username during verification and checks for duplicates. If the standardized address already exists, registration will be blocked.
   
   

2. Unified Suffixes:
   Certain email providers use multiple suffixes that point to the same account (e.g., @example.com and @mail.example.com). LBank standardizes these suffixes and checks for duplicates. If the standardized address is already registered, it will be considered a duplicate account.
   
   

3. Plus Sign (+) Handling:
   Some email services allow adding a plus sign and arbitrary strings (e.g., [email protected]), but these still point to the main account ([email protected]). LBank removes the plus sign and its suffix, checking only the main username for duplicates.
   
   

4. Case Insensitivity:
   LBank treats usernames as case-insensitive. For example, [email protected] and [email protected] are considered the same email, and the system converts them to lowercase for processing.
   
   

5. Restricted Characters:
   LBank prohibits certain characters in email usernames, such as spaces, underscores (_), hyphens (-), @, #, $, and other special symbols. These characters may cause the email address to be invalid or fail verification.
   
   

6. Non-Standard Format Prompt:
   If the email address you entered is non-standard (e.g., contains periods, plus signs, or non-standard suffixes) and the system detects that the standardized format is already registered, the system will prompt you to use another email for registration.
   
   

Common Reasons Your Email Cannot Be Registered

Below are common reasons why your email may not be able to register:

1. Email Already Registered:
   If the email address you entered (or its standardized form) is already used by another account, LBank's deduplication rules will identify it as a duplicate, preventing re-registration. For example, [email protected] and [email protected] are treated as the same email.
   
   

2. Non-Standard Email Format:
   If your email address contains unsupported characters (e.g., spaces, special symbols like #, $) or does not meet the email provider's standard format (e.g., username length not between 6-30 characters), the system may reject it.
   
   

3. Special Suffixes or Characters:
   If your email includes a plus sign suffix (e.g., [email protected]) or other variants, LBank will standardize it and check for duplicates. If the standardized address is already registered, the system will indicate that the email is taken.
   
   

4. Inconsistent Suffixes:
   If you use a variant suffix (e.g., @mail.example.com instead of @example.com), LBank will standardize it and check for duplicates. If the standard suffix version is already registered, registration will be blocked.
   
   

5. Input Errors:
   Typos, extra spaces, or incorrect suffixes may cause the system to fail to recognize your email or indicate that it already exists.
   
   

6. Uncommon Email Domains:
   LBank may not support certain uncommon email domains. If your email domain is not a mainstream or supported domain, the system may reject it.
   
   

7. Restricted Country-Specific Domains:
   Certain email domains commonly used in specific countries (e.g., qq.com, 163.com) may not be supported by LBank due to policy or security considerations, resulting in registration failure.
   
   

How to Resolve Email Registration Issues?

If you encounter an "email cannot be registered" prompt, try the following solutions:

1. Check if the Email is Already Registered:
   If the system prompts "The email {standardized email} already exists. Please use this email to log in," try logging in with the standardized email address shown. If you've forgotten your password, click "Forgot Password" to reset it.
   
   

2. Use a Standard Email Format:
   Ensure your email address does not include unnecessary characters (e.g., periods, plus signs, or special symbols) or non-standard suffixes, and that it meets the email provider's format requirements. For example, use [email protected] instead of [email protected].
   
   

3. Use a Common and Supported Email Domain:
   We recommend using mainstream email service providers (e.g., Gmail, Outlook, Yahoo) for registration. Avoid using uncommon or restricted domains (e.g., qq.com, 163.com).
   
   

4. Verify Input Accuracy:
   Ensure there are no typos, extra spaces, or incorrect characters in your email address. We recommend copying and pasting the email address to avoid errors.
   
   

5. Contact LBank Support:
   If you confirm the email is not in use but still cannot register, contact the LBank support team ([email protected]) with detailed information, and we will assist you in resolving the issue.
   
   

Notes

• New User Registration: LBank's upgraded deduplication rules apply to all new user registrations, ensuring each email address corresponds to only one account, enhancing platform security.

• Existing Users: If you registered an account before the rule upgrade, this update will not affect your normal usage. Future handling of historical data may occur, so please stay tuned for LBank's official announcements.

• Multi-Platform Consistency: LBank's Web and App platforms use the same deduplication verification rules to ensure a consistent registration experience. Please ensure you are using the latest version of the LBank App for optimal compatibility.

Still Need Help?

If you have further questions or cannot resolve the issue, please visit the LBank official website (https://www.lbank.com) or contact our support team at [email protected]. We are committed to providing you with a secure and seamless registration experience!

⚠️ In case of any translation discrepancies, please refer to the English version.