不能使用JavaMail API发送邮件到Gmail帐户(Not able to send mail

当我试图样本邮件发送到Gmail帐户，我越来越com.sun.mail.smtp.SMTPAddressFailedException。以下是我写的代码...请有人可以帮我解决这个问题？

    public class MultiMimes {

public static void main(String[] args) throws Exception{

    Properties props = System.getProperties();
    props.setProperty("mail.smtp.host", "mailservername");
    props.put("mail.debug", "true");
    Session session = Session.getDefaultInstance(props,null);
    Message message = new MimeMessage(session);
    try{
        message.setSubject("I am a multipart text/html email" );
        Address toAddress =new InternetAddress("my gmail address");
        Address fromAddress =new InternetAddress("my organization address");
        message.setFrom(fromAddress);
        message.addRecipient(Message.RecipientType.TO, toAddress);

        MimeMultipart multipart1 = new MimeMultipart("alternative");

        // Create text message part
        MimeBodyPart textPart = new MimeBodyPart();
        textPart.setContent("am text", "text/plain");
        textPart.setHeader("MIME-Version" , "1.0" );
        textPart.setHeader("Content-Type" , textPart.getContentType() );
          System.out.println("textPart.getContentType():"+textPart.getContentType());
        // Create html part
        MimeBodyPart htmlPart = new MimeBodyPart();
        htmlPart.setContent("<html><body><b>am html</b></body></html>", "text/html");
        htmlPart.setHeader("MIME-Version" , "1.0" );
        htmlPart.setHeader("Content-Type" , "text/html" );
        System.out.println("htmlPart.getContentType():"+htmlPart.getContentType());
        //adding multiparts to message
        multipart1.addBodyPart(htmlPart);
        multipart1.addBodyPart(textPart);
        message.setContent(multipart1);

        //sending message
        Transport.send(message);
        System.out.println("mail sent successfully");
    }catch(AddressException ae){
        System.out.println("address exception");
        ae.printStackTrace();
    }
    catch(MessagingException e){
        System.out.println("message exception");
        e.printStackTrace();
    }


}

当我使用的电子邮件ID从同一域中（例如：somebody@test.com）取代Gmail ID，我收到的电子邮件。

Answer 1:

首先，你需要在你的代码部分改成这样：

private static final String SMTP_HOST_NAME = "smtp.gmail.com";

Properties prop = new Properties();
prop.put("mail.smtp.host", SMTP_HOST_NAME);
prop.put("mail.smtp.starttls.enable", "true");
prop.put("mail.smtp.port", "587");
prop.put("mail.smtp.auth", "true");

Authenticator auth = new SMTPAuthenticator();
Session session = Session.getDefaultInstance(prop, auth);

session.setDebug(debug);

这里是SMTPAuthenticator类：

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

/**
  * SimpleAuthenticator is used to do simple authentication
  * when the SMTP server requires it.
  */

public class SMTPAuthenticator extends Authenticator
{
  private static final String SMTP_AUTH_USER = "youremail@gmail.com";
  private static final String SMTP_AUTH_PASSWORD = "yourpassword";

  public PasswordAuthentication getPasswordAuthentication()
  {
    String username = SMTP_AUTH_USER;
    String password = SMTP_AUTH_PASSWORD;

   return new PasswordAuthentication(username,  password);
  }

}

并且请从地址，Gmail和解决任何事情改变你的，因为你的SMTP认证是由Gmail中完成的，所以这部分必须属于到Gmail。

希望可以帮助。

问候

Answer 2:

感谢所有...由于我是新来satckoverflow ......我无法找到添加适当的意见确切方式....

在这里，我并不想通过Gmail的服务器来发送邮件...我只是想送一些Gmail的用户。与此代码，我能够发邮件给组织内的任何一个......但没有人组织外部。

任何办法......我找到了解决我的问题，“预言等待”的建议...我修改我的代码如下：

    package com.trx;

    import java.util.Properties;

    import javax.activation.DataHandler;
    import javax.activation.DataSource;
    import javax.activation.FileDataSource;
    import javax.mail.Address;
    import javax.mail.Authenticator;
    import javax.mail.BodyPart;
    import javax.mail.Message;
    import javax.mail.MessagingException;
    import javax.mail.Multipart;
    import javax.mail.Session;
    import javax.mail.Transport;
    import javax.mail.internet.AddressException;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeBodyPart;
    import javax.mail.internet.MimeMessage;
    import javax.mail.internet.MimeMultipart;

    public class MultiMimes {

public static void main(String[] args) throws Exception{

    Properties props = System.getProperties();
    props.setProperty("mail.smtp.host", "mymailserver");
    props.put("mail.smtp.port", "25");
    props.put("mail.smtp.auth", "true");
    props.put("mail.debug", "true");
    Authenticator auth = new SMTPAuthenticator();
    Session session = Session.getDefaultInstance(props, auth);
    Message message = new MimeMessage(session);
    try{
        message.setSubject("I am a multipart text/html email" );
        Address toAddress =new InternetAddress("my gmail address");
        Address fromAddress =new InternetAddress("my organization address");
        message.setFrom(fromAddress);
        message.addRecipient(Message.RecipientType.TO, toAddress);
        MimeMultipart multipart1 = new MimeMultipart("alternative");

        // Create text message part
        MimeBodyPart textPart = new MimeBodyPart();
        textPart.setContent("am text", "text/plain");
        textPart.setHeader("MIME-Version" , "1.0" );
        textPart.setHeader("Content-Type" , textPart.getContentType() );
          System.out.println("textPart.getContentType():"+textPart.getContentType());
        // Create html part
        MimeBodyPart htmlPart = new MimeBodyPart();
        htmlPart.setContent("<html><body><b>am html</b></body></html>",  "text/html");
        htmlPart.setHeader("MIME-Version" , "1.0" );
        htmlPart.setHeader("Content-Type" , "text/html" );
        System.out.println("htmlPart.getContentType():"+htmlPart.getContentType());
        //adding multiparts to message

        multipart1.addBodyPart(textPart);
        multipart1.addBodyPart(htmlPart);
        message.setContent(multipart1);

        //sending message
        Transport.send(message);
        System.out.println("mail sent successfully");
    }catch(AddressException ae){
        System.out.println("address exception");
        ae.printStackTrace();
    }
    catch(MessagingException e){
        System.out.println("message exception");
        e.printStackTrace();
    }


        }

   }

我用他所提供的同一类SMTPAuthenticator ......现在，我能够再次发送邮件形式我组织的邮件服务器的任何电子邮件ID ...谢谢。