纯java实现邮件发送服务（亲测好用）

import com.sun.mail.util.MailSSLSocketFactory;

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.security.GeneralSecurityException;
import java.util.Date;
import java.util.Properties;

public class Main {

    public static void main(String[] args) throws MessagingException, GeneralSecurityException {
        Properties props = new Properties();

        // 开启debug调试
        props.setProperty("mail.debug", "true");
        // 发送服务器需要身份验证
        props.setProperty("mail.smtp.auth", "true");
        // 设置邮件服务器主机名
        props.setProperty("mail.host", "smtp.163.com");
       // props.setProperty("mail.port", "465");
        // 发送邮件协议名称
        props.setProperty("mail.transport.protocol", "smtp");

        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        props.put("mail.smtp.ssl.enable", "true");
        props.put("mail.smtp.ssl.socketFactory", sf);

        Session session = Session.getInstance(props);

        Message msg = new MimeMessage(session);
        msg.setSubject("seenews 错误");
        StringBuilder builder = new StringBuilder();
        builder.append("url = " + "http://blog.csdn.net/never_cxb/article/details/50524571");
        builder.append("\n页面爬虫错误");
        builder.append("\n时间 " + new Date().getTime());
        msg.setText(builder.toString());
        msg.setFrom(new InternetAddress("m15101172298@163.com"));

        Transport transport = session.getTransport();
        transport.connect("smtp.163.com", "m15101172298@163.com", "**你自己的邮箱地址**");

        transport.sendMessage(msg, new Address[] { new InternetAddress("623362984@qq.com") });
        transport.close();
    }
}