139 mailbox can't receive Twitter verification code

139 Why can't I receive the Twitter verification code? The reasons why the email address 139 can't receive Twitter verification code are as follows:

1, mailbox system delay. The mailbox service provider system sometimes delays receiving or sending mail, so it needs to try again later.

2. The mailbox is set as spam. Check the spam box to see if the verification code is accidentally classified as spam.

3. E-mail accounts are set with filters. Some email clients will filter some emails according to the sender, subject or content. , and check whether the filter is set in the configuration.

4. The email address was entered incorrectly. Please make sure that the email address you entered is correct and there are no spelling mistakes.

5.Twitter verification code is used by others. If you don't receive Twitter verification code more than once, it's because the mobile phone number or email address has been registered or used by others. Twitter verification code is a combination of numbers or letters used for account verification. When registering a new account or changing account settings, the system will ask for the correct verification code. This is to ensure the security of accounts and prevent robots or malicious programs from automatically registering or changing account information.