你可以钩住retrieve_password_message (code):

/**
 * Filters the message body of the password reset mail.
 *
 * If the filtered message is empty, the password reset email will not be sent.
 *
 * @param string  $message    Default mail message.
 * @param string  $key        The activation key.
 * @param string  $user_login The username for the user.
 * @param WP_User $user_data  WP_User object.
 */

如上所述，激活密钥和用户登录作为参数传递给过滤器，您可以从WP\\U用户对象获取用户的电子邮件地址，$user_data->user_email.