我的代码如下
 public class MailUtil {
    public static final String HOST = "smtp.163.com";
    public static final String PROTOCOL = "smtp";  
    public static final int PORT = 25;  //ssl :465/994  非ssl: 25
    public static final String FROM = "****@163.com";//发件人的email
    public static final String PWD = "*****";//网易邮箱的客户端授权密码

    /**
     * 获取Session
     * @return
     */
    private static Session getSession() {
        Properties props = new Properties();
        props.put("mail.smtp.host", HOST);//设置服务器地址
        props.put("mail.store.protocol" , PROTOCOL);//设置协议
        props.put("mail.smtp.port", PORT);//设置端口
        props.put("mail.smtp.auth" , true);

        Authenticator authenticator = new Authenticator() {

            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(FROM, PWD);
            }

        };
        Session session = Session.getDefaultInstance(props , authenticator);

        return session;
    }

    public static void send(String toEmail , String content) {
        Session session = getSession();
        try {
            System.out.println("--send--"+content);
            // Instantiate a message
            Message msg = new MimeMessage(session);

            //Set message attributes
            msg.setFrom(new InternetAddress(FROM));
            InternetAddress[] address = {new InternetAddress(toEmail)};
            msg.setRecipients(Message.RecipientType.TO, address);
            msg.setSubject("账号激活邮件");
            msg.setSentDate(new Date());
            msg.setContent(content , "text/html;charset=utf-8");


            //Send the message
            Transport.send(msg);
        }
        catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }
    public static void main(String[] args) {
        MailUtil.send("weilizong2014@hotmail.com", "当年我很喜欢你,你却只你自己");
    }
}
公司的自建邮件服务器投不进 163，显示“451 DT:SPM”

布客飞龙

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