javamail验证失败Authentication failed的原因以及解决办法

小灰灰 2022-06-16 11:16 1132阅读 0赞

javamail邮件开发:  
验证失败的原因和解决办法:  
发送成功之后再控制台打印的内容

--------------------

1.先申请一个邮箱,然后开通pop3/smtp服务  
这里我用的是网易的163邮箱  
在开启POP3/SMTP服务的时候会让你输入一个授权码,这个授权码后面会用到.  
![这里写图片描述][SouthEast]

2.代码的书写:

@Test
        public void testJavaMail() throws Exception{
            Properties props = new Properties();
            props.put("mail.smtp.host", "smtp.163.com");//指定邮件的发送服务器地址
            props.put("mail.smtp.auth", "true");//服务器是否要验证用户的身份信息
    
            Session session = Session.getInstance(props);//得到Session
            session.setDebug(true);//代表启用debug模式，可以在控制台输出smtp协议应答的过程
    
    
            //创建一个MimeMessage格式的邮件
            MimeMessage message = new MimeMessage(session);
    
            //设置发送者
            Address fromAddress = new InternetAddress("xxxx@163.com");//邮件地址
            message.setFrom(fromAddress);//设置发送的邮件地址
            //设置接收者
            Address toAddress = new InternetAddress("xxxx@qq.com");//要接收邮件的邮箱
            message.setRecipient(RecipientType.TO, toAddress);//设置接收者的地址
    
            //设置邮件的主题
            message.setSubject("xxxx");
            //设置邮件的内容
            message.setText("xxxxxxxx");
            //保存邮件
            message.saveChanges();
    
    
            //得到发送邮件的服务器(这里用的是smtp服务器)
            Transport transport = session.getTransport("smtp");
    
            //发送者的账号连接到smtp服务器上 @163.com可以不写
    transport.connect("smtp.163.com","xxxx@163.com","授权码"); 
            //发送信息
            transport.sendMessage(message, message.getAllRecipients());
            //关闭服务器通道
            transport.close();
        }

3.验证失败的原因:

//发送者的账号连接到smtp服务器上  @163.com可以不写
    transport.connect("smtp.163.com","xxxx@163.com","授权码");

应该填的是授权码,而不是你邮箱的登陆密码,要注意

4.发送成功之后再控制台打印的内容

DEBUG: setDebug: JavaMail version 1.4.4
    DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
    DEBUG SMTP: useEhlo true, useAuth true
    DEBUG SMTP: trying to connect to host "smtp.163.com", port 25, isSSL false
    220 163.com Anti-spam GT for Coremail System (163com[20141201])
    DEBUG SMTP: connected to host "smtp.163.com", port: 25
    
    EHLO SKY-20161018HDH
    250-mail
    250-PIPELINING
    250-AUTH LOGIN PLAIN
    250-AUTH=LOGIN PLAIN
    250-coremail 1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2Ur6TvxkUCa0xDrUUUUj
    250-STARTTLS
    250 8BITMIME
    DEBUG SMTP: Found extension "PIPELINING", arg ""
    DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN"
    DEBUG SMTP: Found extension "AUTH=LOGIN", arg "PLAIN"
    DEBUG SMTP: Found extension "coremail", arg "1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2Ur6TvxkUCa0xDrUUUUj"
    DEBUG SMTP: Found extension "STARTTLS", arg ""
    DEBUG SMTP: Found extension "8BITMIME", arg ""
    DEBUG SMTP: Attempt to authenticate
    DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
    AUTH LOGIN
    334 dXNlcm5hbWU6
    MTgzMDA2MDI0MDdAMTYzLmNvbQ==
    334 UGFzc3dvcmQ6
    a2tib2trMTIz
    235 Authentication successful
    DEBUG SMTP: use8bit false
    MAIL FROM:<xxxx@163.com>
    250 Mail OK
    RCPT TO:<xxxx@qq.com>
    250 Mail OK
    DEBUG SMTP: Verified Addresses
    DEBUG SMTP:   xxxx@qq.com
    DATA
    354 End data with <CR><LF>.<CR><LF>
    From: xxxx@163.com
    To: xxxx@qq.com
    Message-ID: <1243355991.0.1494736360086.JavaMail.Administrator@SKY-20161018HDH>
    Subject: =?UTF-8?B?5ZOl5ZOl77yM5pma5LiK57qm5L2g77yB?=
    MIME-Version: 1.0
    Content-Type: text/plain; charset=UTF-8
    Content-Transfer-Encoding: base64
    
    5oiR5pivY2d444CC44CC44CC44CC6ICB5Zyw5Z2A6KeB77yBZGFz
    .
    250 Mail OK queued as smtp5,D9GowAD3C3Tn3RdZqs5eAA--.3250S2 1494736361
    QUIT

[SouthEast]: /images/20220616/96481d834359487bb292e0ad5bb98608.png