摘要： 下面是一个带有用户名验证的邮件发送：import java.io.*;import java.net.*;public class MailSender { private String smtpServer = "smtp.163.com" ; private int port = 25 ; public static void main(String args[]) { Message msg = new Message("123@163.com","456@qq.com","Testmail","H 阅读全文