javamail 使用网易163邮箱发送邮件报错：554 DT:SPM

写在前面

想必大家在用javamail使用网易邮箱发送邮件时会遇到这样一个蛋疼的错误：554 DT:SPM

网上找了、也试了很多种方法。这里贴一个亲测有效的方法。

解决方法

方法： 在发送给收信人之前给自己抄送一份

方法实现：

// 设置属性
private Properties p; // p是属性集合类，用来设置邮件的一些属性比如timeout等
p.put("userName","[email protected]"); //这里填上你的邮箱（发送方）

// 构件MimeMessage 对象，并设置在发送给收信人之前给自己（发送方）抄送一份
MimeMessage msg = mailSender.createMimeMessage();
msg.addRecipients(MimeMessage.RecipientType.CC, InternetAddress.parse(p.getProperty("userName")));

---

完整代码

package com.hzy.gradeinform.Util;

import com.hzy.gradeinform.Model.Grade;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;

import javax.mail.MessagingException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.ArrayList;
import java.util.Properties;

/**
 * Created by huangzhenyang on 2017/8/15.
 */
public class MailUtil {
    // Spring的邮件工具类，实现了MailSender和JavaMailSender接口
    private JavaMailSenderImpl mailSender;
    private Properties p;
    private int timeout = 25000;
    private String subject = "Grade·Inform";
    private StringBuilder content;

    public MailUtil(ArrayList arrayList){
        mailSender = new JavaMailSenderImpl();
        p = new Properties();
        content = new StringBuilder();
        initMail(mailSender,p,arrayList);
    }

    private void initMail(JavaMailSenderImpl mailSender, Properties p,ArrayList arrayList){
        // 设置参数
        mailSender.setHost("smtp.163.com");
        mailSender.setUsername("[email protected]"); //你的邮箱
        mailSender.setPassword("xxx"); //密码，这里必须先在网易邮箱里开启smtp服务
        //设置property
        p.put("userName","[email protected]");
        p.setProperty("mail.smtp.timeout",timeout+"");
        p.setProperty("mail.smtp.auth","true");
        mailSender.setJavaMailProperties(p);
        //设置内容格式
        content.append("");
        content.append("Hi. This is the New Grade·Inform.");
        content.append("
");
        //简单版本
        /*String text;
        for (Grade grade:arrayList) {
            text = "";
            text += grade.toString();
            content.append(text);
            content.append("
");
        }*/
        //表格版本
        content.append("");
            content.append("");
                content.append("");
                content.append("");
                content.append("");
                content.append("");
                content.append("");
                content.append("");
                content.append("");
            content.append("");
            content.append("");
                for (Grade grade: arrayList) {
                    content.append("");
                        content.append("");
                        content.append("");
                        content.append("");
                        content.append("");
                        content.append("");
                    content.append("");
                }
            content.append("");
        content.append("
课程名
分数
绩点
学分
属性
"+grade.getCourseName()+"
"+grade.getScore()+"
"+grade.getGpa()+"
"+grade.getCredit()+"
"+grade.getAttribute()+"
");

        content.append("
");
        content.append("Thank you! ");
}
/**
*
* @param recipient 收件人
*
*
*/
public void send(String recipient) throws MessagingException {
// 构建简单邮件对象，见名知意
MimeMessage msg = mailSender.createMimeMessage();
// *** 关键 ***
msg.addRecipients(MimeMessage.RecipientType.CC, InternetAddress.parse(p.getProperty("userName")));
MimeMessageHelper helper = new MimeMessageHelper(msg,true,"utf-8");
// 设定邮件参数
helper.setFrom(mailSender.getUsername());
helper.setTo(recipient);
helper.setSubject(subject);
helper.setText(content.toString(),true);
System.out.println(">>> content: "+content);
// 发送邮件
mailSender.send(msg);
}
}

---

写在后面

网易邮箱的554 DT:SPM真的是巨坑天坑神坑！！！ 这个方法虽然很蠢……不过好歹是解决了。Hmmm..