使用nodemailer在nodejs中发送邮件以使多个收件人

Question

以下代码将电子邮件发送给3个收件人，但是我想知道是否有一种方法（除了循环外），邮件的收件人只能在收到的邮件的“收件人”字段中看到其姓名，并且没有其他两个。

var nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');

var mailAccountUser = '<YOUR_ACCOUNT_USER>'
var mailAccountPassword = '<YOUR_ACCOUNT_PASS>'

var fromEmailAddress = '<FROM_EMAIL>'


var transport = nodemailer.createTransport(smtpTransport({
    service: 'gmail',
    auth: {
        user: mailAccountUser,
        pass: mailAccountPassword
    }
}))

var mail = {
    from: fromEmailAddress,
    to: [abc@gmail.com, def@gmail.com,ghi@gmail.com],
    subject: "hello world!",
    text: "Hello!",
    html: "<b>Hello!</b><p><a href=\"http://www.yahoo.com\">Click Here</a></p>"
}

transport.sendMail(mail, function(error, response){
    if(error){
        console.log(error);
    }else{
        console.log("Message sent: " + response.message);
    }

    transport.close();
});