npm install nodemailer --save

var nodemailer = require('nodemailer');

// create reusable transporter object using the default SMTP transport
var transporter = nodemailer.createTransport('smtps://user%40gmail.com:pass@smtp.gmail.com');

// setup e-mail data with unicode symbols
var mailOptions = {
  from: 'Fred Foo "htmlcode">

{ [AuthError: Invalid login - 454 Authentication failed, please open smtp flag first!]
 name: 'AuthError',
 data: '454 Authentication failed, please open smtp flag first!',
 stage: 'auth' }



错误原因： 账号未设置该服务

解决方案: QQ邮箱 -> 设置 -> 帐户 -> 开启服务：POP3/SMTP服务


{ [SenderError: Mail from command failed - 501 mail from address must be same as authorization user]
 name: 'SenderError',
 data: '501 mail from address must be same as authorization user',
 stage: 'mail' }


错误原因： 发件账号与认证账号不同，即用户名和密码不匹配。
以上就是本文的全部内容，希望对大家的学习有所帮助。