blocks|key|1664964|text|我认为这与使用SMTPS而不是SMTP进行邮件传输有关。这是一个不同的版本，仿照JavaMail+FAQ+on+accessing+Gmail。请注意，为了清楚起见，我省略了所有更精细的异常处理。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1664965|private+static+void+send(
++++++++final+String+username,
++++++++final+String+password,
++++++++final+String+recipients,
++++++++final+String+subject,
++++++++final+String+body)
++++++++throws+Exception
{
++++final+Session+session+=+Session.getInstance(System.getProperties(),+null);
++++final+Message+msg+=+new+MimeMessage(session);
++++final+String+senderEmail+=+username.contains("@")+?+username+:+(username+%2B+"@gmail.com");
++++msg.setFrom(new+InternetAddress(senderEmail));

++++final+Address[]+recipientAddresses+=+InternetAddress.parse(recipients);
++++msg.setRecipients(Message.RecipientType.TO,+recipientAddresses);

++++msg.setSentDate(new+Date());
++++msg.setSubject(subject);
++++msg.setText(body);

++++final+Transport+transport+=+session.getTransport("smtps");
++++transport.connect(GMAIL_SMTP_HOST,+GMAIL_SMTP_PORT,+username,+password);
++++transport.sendMessage(msg,+recipientAddresses);
++++transport.close();
}|code-block|syntax|javascript|1664966|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/products/javamail/FAQ.html#gmail^0|14|V|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

I think it's got to do with using SMTPS instead of SMTP for mail transport. Here's a different version, modeled after the <a href="http://java.sun.com/products/javamail/FAQ.html#gmail" rel="nofollow noreferrer">JavaMail FAQ on accessing Gmail</a>. Note that I have left out all of the finer level exception handling for clarity.

<pre><code>private static void send(
 final String username,
 final String password,
 final String recipients,
 final String subject,
 final String body)
 throws Exception
{
 final Session session = Session.getInstance(System.getProperties(), null);
 final Message msg = new MimeMessage(session);
 final String senderEmail = username.contains("@") ? username : (username + "@gmail.com");
 msg.setFrom(new InternetAddress(senderEmail));

 final Address[] recipientAddresses = InternetAddress.parse(recipients);
 msg.setRecipients(Message.RecipientType.TO, recipientAddresses);

 msg.setSentDate(new Date());
 msg.setSubject(subject);
 msg.setText(body);

 final Transport transport = session.getTransport("smtps");
 transport.connect(GMAIL_SMTP_HOST, GMAIL_SMTP_PORT, username, password);
 transport.sendMessage(msg, recipientAddresses);
 transport.close();
}
</code></pre>

blocks|key|1664986|text|它是java+mail+API的版本。我正面临着这个问题，我刚刚将java+mail+API更新到了1.4.3，它对我来说工作得很好！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1664987|谢谢!|1664988|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

It is the version of java mail API.
I was facing this issue and I just updated the java mail API to 1.4.3
It works fine for me!

Thanks!

blocks|key|1665021|text|设置以下标签。看起来不错。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1665022|props.put("mail.smtp.user","username");+
props.put("mail.smtp.host",+"smtp.gmail.com");+
props.put("mail.smtp.port",+"25");+
props.put("mail.debug",+"true");+
props.put("mail.smtp.auth",+"true");+
props.put("mail.smtp.starttls.enable","true");+
props.put("mail.smtp.EnableSSL.enable","true");

props.setProperty("mail.smtp.socketFactory.class",+"javax.net.ssl.SSLSocketFactory");+++
props.setProperty("mail.smtp.socketFactory.fallback",+"false");+++
props.setProperty("mail.smtp.port",+"465");+++
props.setProperty("mail.smtp.socketFactory.port",+"465");+|code-block|syntax|javascript|1665023|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Set the following tags. It will work.

<pre><code>props.put("mail.smtp.user","username"); 
props.put("mail.smtp.host", "smtp.gmail.com"); 
props.put("mail.smtp.port", "25"); 
props.put("mail.debug", "true"); 
props.put("mail.smtp.auth", "true"); 
props.put("mail.smtp.starttls.enable","true"); 
props.put("mail.smtp.EnableSSL.enable","true");

props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
props.setProperty("mail.smtp.socketFactory.fallback", "false"); 
props.setProperty("mail.smtp.port", "465"); 
props.setProperty("mail.smtp.socketFactory.port", "465"); 
</code></pre>

blocks|key|1450003|text|这快把我逼疯了，所以我只想加上对我有用的东西。我不得不更新我的JavaMail版本(1.4.5)才能正常工作--我不确定之前使用的是什么版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450004|当我更新到新版本的JavaMail后，以下代码对我有效(可以取消对调试行的注释以获取额外的调试信息-端口是587，主机是smtp.gmail.com)：|offset|length|style|CODE|1450005|public+void+sendMailWithAuth(String+host,+String+user,+String+password,+
++++String+port,+List<String>+toList,+String+htmlBody,+
++++++++String+subject)+throws+Exception+{

++++Properties+props+=+System.getProperties();

++++props.put("mail.smtp.user",user);+
++++props.put("mail.smtp.password",+password);
++++props.put("mail.smtp.host",+host);+
++++props.put("mail.smtp.port",+port);+
++++//props.put("mail.debug",+"true");+
++++props.put("mail.smtp.auth",+"true");+
++++props.put("mail.smtp.starttls.enable","true");+
++++props.put("mail.smtp.EnableSSL.enable","true");

++++Session+session+=+Session.getInstance(props,+null);
++++//session.setDebug(true);

++++MimeMessage+message+=+new+MimeMessage(session);
++++message.setFrom(new+InternetAddress(user));

++++//+To+get+the+array+of+addresses
++++for+(String+to:+toList)+{
++++++++message.addRecipient(Message.RecipientType.TO,+new+InternetAddress(to));
++++}

++++message.setSubject(subject);
++++message.setContent(htmlBody,+"text/html");

++++Transport+transport+=+session.getTransport("smtp");
++++try+{
++++++++transport.connect(host,+user,+password);
++++++++transport.sendMessage(message,+message.getAllRecipients());
++++}+finally+{
++++++++transport.close();
++++}
}|code-block|syntax|javascript|1450006|entityMap^0|0|1H|3|1O|E|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]|$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

This was driving me crazy and so just wanted to add what worked for me. I had to update my version of JavaMail (1.4.5) for this to work - not sure what version was being used before.

Once I updated to new version of JavaMail, the following code worked for me (can uncomment the debug lines to get additional debugging info - port was <code>587</code> and host was <code>smtp.gmail.com</code>):

<pre><code>public void sendMailWithAuth(String host, String user, String password, 
 String port, List&lt;String&gt; toList, String htmlBody, 
 String subject) throws Exception {

 Properties props = System.getProperties();

 props.put("mail.smtp.user",user); 
 props.put("mail.smtp.password", password);
 props.put("mail.smtp.host", host); 
 props.put("mail.smtp.port", port); 
 //props.put("mail.debug", "true"); 
 props.put("mail.smtp.auth", "true"); 
 props.put("mail.smtp.starttls.enable","true"); 
 props.put("mail.smtp.EnableSSL.enable","true");

 Session session = Session.getInstance(props, null);
 //session.setDebug(true);

 MimeMessage message = new MimeMessage(session);
 message.setFrom(new InternetAddress(user));

 // To get the array of addresses
 for (String to: toList) {
 message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
 }

 message.setSubject(subject);
 message.setContent(htmlBody, "text/html");

 Transport transport = session.getTransport("smtp");
 try {
 transport.connect(host, user, password);
 transport.sendMessage(message, message.getAllRecipients());
 } finally {
 transport.close();
 }
}
</code></pre>

blocks|key|1450069|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450070|打开:允许您的gmail帐户使用安全性较低的应用|1450071|https://myaccount.google.com/lesssecureapps|offset|length|1450072|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|17|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@$F|R|G|S|1|T]]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|E]]]]

try this:

turn on: Allow less secure apps for your gmail account

<a href="https://myaccount.google.com/lesssecureapps" rel="nofollow noreferrer">https://myaccount.google.com/lesssecureapps</a>

I am trying to use <a href="https://stackoverflow.com/questions/46663/how-do-you-send-email-from-a-java-app-using-gmail#47452">Bill the Lizard's code</a> to send an email using Google Apps. I am getting this error: 

<pre><code>Exception in thread "main" javax.mail.SendFailedException: Sending failed;
 nested exception is: 
 javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. f3sm9277120nfh.74

 at javax.mail.Transport.send0(Transport.java:219)
 at javax.mail.Transport.send(Transport.java:81)
 at SendMailUsingAuthentication.postMail(SendMailUsingAuthentication.java:81)
 at SendMailUsingAuthentication.main(SendMailUsingAuthentication.java:44)
</code></pre>

Bill's code contains the next line, which seems related to the error: 

<pre><code> props.put("mail.smtp.starttls.enable","true");
</code></pre>

However, it does not help.

These are my import statements: 

<pre><code>import java.util.Properties; 
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
</code></pre>

Does anyone know about this error?

Must issue a STARTTLS command first. Sending email with Java and Google Apps

我正在尝试使用通过谷歌应用程序发送电子邮件。我得到了这个错误：Exception in thread "main" javax.mail.SendFailedException: Sending failed;  nested exception is:     javax.mail.MessagingExceptio...

问必须先发出STARTTLS命令。使用Java和Google Apps发送电子邮件
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问必须先发出STARTTLS命令。使用Java和Google Apps发送电子邮件EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问必须先发出STARTTLS命令。使用Java和Google Apps发送电子邮件
EN