Am unable to send email[SMTP] by using java programme

Question

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i need to send email from using smtp server with help of java programming

What I have tried:

<pre lang="java">package com.techstar.com;

import java.util.Properties;

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 IpAdress
{
 public static void main(String [] args){
	 // email ID of Recipient.
	 String to = "msr2858@gmail.com";//change accordingly  
     String from = "siddareddy.moolam@gmail.com";//change accordingly  
     String host = "smtp.gmail.com";//or IP address  
 
    //Get the session object  
     Properties properties = System.getProperties();  
     properties.setProperty("mail.smtp.host", host);  
     Session session = Session.getDefaultInstance(properties);  
 
    //compose the message  
     try{  
        MimeMessage message = new MimeMessage(session);  
        message.setFrom(new InternetAddress(from));  
        message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));  
        message.setSubject("Ping");  
        message.setText("Hello, this is example of sending email  ");  
 
        // Send message  
        Transport.send(message);  
        System.out.println("message sent successfully....");  
 
     }catch (MessagingException mex) {mex.printStackTrace();}  
  }  
}

output:
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25;
nested exception is:
java.net.ConnectException: Connection timed out (Connection timed out)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1706)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:525)
at javax.mail.Service.connect(Service.java:291)
at javax.mail.Service.connect(Service.java:172)
at javax.mail.Service.connect(Service.java:121)
at javax.mail.Transport.send0(Transport.java:190)
at javax.mail.Transport.send(Transport.java:120)
at com.techstar.com.IpAdress.main(IpAdress.java:34)
Caused by: java.net.ConnectException: Connection timed out (Connection timed out)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:284)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:227)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1672)
... 7 more

Posted 14-Jun-18 23:48pm

Member 13809409

Updated 15-Jun-18 0:05am

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Comments

Mohibur Rashid 15-Jun-18 5:59am

have you installed smtp server?

Member 13809409 15-Jun-18 6:02am

noo

1 solution

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Jochen Arndt · Accepted Answer · 2018-06-15T00:06:00

Just search the web for something like "java smtp gmail" to know how to set the properties for using the Gmail SMTP server:

Java

Properties properties = new Properties();
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.starttls.enable", "true");
properties.put("mail.smtp.host", "smtp.gmail.com");
properties.put("mail.smtp.port", "587");

Session session = Session.getInstance(props,
    new javax.mail.Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password);
    }
});

Note also that you must configure the used GMail account (specified in the From field and which credentials are passed) to allow mails to be send from untrusted applications.

You should not post valid email addresses. I suggest to edit your question using the green 'Improve question' link to remove the user names.