java发送email出问题请帮忙解释一下！

bengbeng24
java是如何发送email的呀？
提供示例代碼給大家看下。
謝啦

sun网站上下载JavaMailAPIProperties mailProps = new Properties();mailProps.put("mail.smtp.host", smtpHost);
mailProps.put("mail.pop3.host", pop3Host);
mailProps.put("mail.smtp.auth", "true");Session session = Session.getInstance(mailProps, null);
MimeMessage newMessage = new MimeMessage(this.session);
newMessage.setFrom(new InternetAddress(this.email));
newMessage.setRecipient(Message.RecipientType.TO,new InternetAddress(msg.getTos()));
newMessage.setHeader("X-Mailer", "jpower");
newMessage.setSubject(msg.getTopic());
newMessage.setSentDate(new Date());
SMTPTransport t =(SMTPTransport)session.getTransport("smtp");
t.connect(smtpHost, smtpUser, smtpPassword);
t.sendMessage(newMessage, newMessage.getAllRecipients());

stmp的错误代码：
421 <domain> Service not available, closing transmission channel 括号内的主机无法提供正常服务，关闭传送管道，邮件将滞留在主机上
　　450 Requested mail action not taken: mailbox unavailable 所要求的邮件动作无法执行：邮件信箱无法提供服务，邮件将滞留在主机上
　　451 Requested action aborted: local error in processing 要求动作中断：本地端错误
　　452 Requested action not taken: insufficient system storage 要求动作无法执行：系统空间不足
　　550 Requested action not taken: mailbox unavailable 所要求动作无法执行：信箱不存在，邮件将退回给寄件者
　　551 User not local; please try <forward-path> 邮件伺服器知道使用者不属於本地端，将尝试括号内的转送路径
　　552 Requested mail action aborted: exceeded storage allocation 所要求的动作中断：超出所分配的储存空间，邮件将退回给寄件者
　　553 Requested action not taken: mailbox name not allowed 所要求的动作未执行：信箱不允许该动作执行
　　554 Transaction failed 传送失败

发送邮件SendMailTest.javapackage com.niex.mail.javamail;
import java.util.Date;
import java.util.Properties;import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendMailTest {

    SendMailTest() {
    }
/**
* 发送邮件
*
*/
    public void sendMail() {
        logger.debug("开始发送邮件");
        //配置属性
        Properties props = new Properties();
        props.put("mail.smtp.host", "MAILSTORE1");
        props.put("mail.smtp.auth", "true");
        props.put("mail.transpost.protocol", "smtp");
        //验证（Authenticator为抽象类不能实例化）
        Authenticator sa = new SmtpAuthenticator("username", "password");        //获取session
        Session sendMailSession = Session.getInstance(props, sa);

        //设置调试模式
         //sendMailSession.setDebug(true);

        Transport transport;
        Message newMessage = new MimeMessage(sendMailSession);
        try {
            newMessage.setFrom(new InternetAddress("[email protected]"));
            newMessage.setRecipient(Message.RecipientType.TO, new InternetAddress("[email protected]"));
            newMessage.setSubject("javamail测试");
            newMessage.setSentDate(new Date());
            newMessage.setText("121");
            //得到transport：用于传输mail
            transport = sendMailSession.getTransport("smtp");
            //调试连接到邮件服务器
            transport.connect("MAILSTORE1","username","password");
            //发送邮件
            Transport.send(newMessage);        } catch (MessagingException e) {
            logger.debug("发送邮件出错");
            logger.debug(e.toString());
        }
        logger.debug("完成发送邮件");
    }    public static void main(String[] args) {
        SendMailTest sbt = new SendMailTest();
        sbt.sendMail();
    }
}
邮件服务器权限验证SmtpAuthenticator.java
package com.niex.mail.javamail;import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;/**
*
* @author
*
*/
public class SmtpAuthenticator extends Authenticator {
    String userName;    String userPassword;    public SmtpAuthenticator(String userName, String userPassword) {
        this.userName = userName;
        this.userPassword = userPassword;
    }
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(userName, userPassword);
    }
}

你可以在命令行下发一封邮件像这样:
C:\Documents and Settings\Administrator>telnet smtp.sina.com.cn 25
220 smtp.sina.com.cn ESMTP SINAMAIL (Postfix Rules!)
ehlo it315
250-smtp.sina.com.cn
250-PIPELINING
250-SIZE 19660800
250-VRFY
250-ETRN
250-AUTH LOGIN
250-AUTH=LOGIN
250 8BITMIME
auth login
334 VXNlcm5hbWU6
aXQzMTVfdGVzdA==
334 UGFzc3dvcmQ6
MTIzNDU2
235 Authentication successful
mail from:<[email protected]>
250 Ok
rcpt to:<[email protected]>
250 Ok
data
354 End data with <CR><LF>.<CR><LF>
from:[email protected]
to:[email protected]
subject:xjizhe li shi biao ti
subject:xjizhe li shi biao tizhe li shi xin jian de nei rong !hehe,zhu yi xie wan l jiu fa yi ge .
.
250 Ok: queued as 40C843B5F3A
好了,这样就完成了一封邮件的发送,注意用户名和密码都是要经过base64编码的,呵呵.

调试易

java发送email出问题请帮忙解释一下！

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