Hello, in general, you can receive the verification code. If there is a timeout, you need to first check with the user who registered with the email to see if the verification code is received in the spam mailbox. The email address of our verification code is firstname.lastname@example.org, please confirm whether you have received the email from this email. Some mailboxes may block our verification code mail, you can set the white list of the mailbox, and do not block the mail sent by Tuya. If you still have problems, you can provide the app information and user app account that have not received the verification code. We will forward it to the professional engineer.