Can't send java mail to smtp host

Question

I have this class inside my camunda environment(and i use this class like as service task inside camunda modeller):

public class SendMails implements JavaDelegate{

    String  text,from,password;
    Object jsonObject1=new JSONObject();
 public static void send( final String from, final String password,String to,String sub,String msg){  
     Properties props = new Properties();    
     props.put("mail.smtp.host", "smtp.gmail.com");    
     props.put("mail.smtp.socketFactory.port", "465");    
     props.put("mail.smtp.socketFactory.class",    
               "javax.net.ssl.SSLSocketFactory");    
     props.put("mail.smtp.auth", "true");    
     props.put("mail.smtp.port", "465");    
     //get Session   
     Session session = Session.getDefaultInstance(props,    
      new javax.mail.Authenticator() {    
      protected PasswordAuthentication getPasswordAuthentication() {    
      return new PasswordAuthentication(from,password);  
      }    
     });    
     //compose message    
     try {    
      MimeMessage message = new MimeMessage(session);    
      message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));    
      message.setSubject(sub);    
      message.setText(msg);    
      //send message  
      Transport.send(message);    
      System.out.println("message sent successfully");    
     } catch (MessagingException e) {throw new RuntimeException(e);}    

}  

    public void execute(DelegateExecution execution) throws Exception {

        text = execution.getVariable("selectedDocuments").toString();
        send("[email protected]","xxxxx","[email protected]","hello javatpoint","How r u?");  

        }
    }

HERE IS MY POM:

<dependencies>  
 <dependency>
      <groupId>org.camunda.bpm</groupId>
      <artifactId>camunda-engine</artifactId>
      <scope>provided</scope>
    </dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>test</scope>
</dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
    <groupId>com.sun.mail</groupId>
    <artifactId>javax.mail</artifactId>
    <version>1.5.5</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/javax/javaee-api -->
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-api</artifactId>
    <version>8.0</version>
    <scope>provided</scope>
</dependency>

    </dependencies>

but when i try to send message i got errors like this:

Caused by: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 465; timeout -1; nested exception is: java.net.ConnectException: Connection timed out: connect at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2100) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:699) at javax.mail.Service.connect(Service.java:388) at javax.mail.Service.connect(Service.java:246) at javax.mail.Service.connect(Service.java:195) at javax.mail.Transport.send0(Transport.java:254) at javax.mail.Transport.send(Transport.java:124) at ge.psda.camunda.sendMails.SendMails.send(SendMails.java:40) ... 208 more

P.S i have enabled less secure up in my mail but this can't helped me what should i change to be able to send mail?

Possible duplicate of unalbe to connect smtp.gmail.com at 465 in a loop — swaroop pallapothu
First, fix all these common JavaMail mistakes. Then, upgrade to the current version of JavaMail. Finally, the JavaMail FAQ has tips for debugging connection problems. — Bill Shannon

Mamun Kayum Mamun Kayum · Accepted Answer · 2018-03-07T09:08:15

You have to provide credentials for the sender. You have configured(properties) it for gmail. Actually you have configure properties for your smtp server from where you are sending email.

And dependencies you need:

<dependencies>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mail</artifactId>
        <version>1.4</version>
    </dependency>

    <dependency>
        <groupId>javax.activation</groupId>
        <artifactId>activation</artifactId>
        <version>1.1.1</version>
    </dependency>

</dependencies>

Can't send java mail to smtp host

1 Answers