to send a single message(email) to all students of an institute within short time

[pradeepsingh999]

Hi
I have assigned to make a project of sending bulk email through through my web-application.Could you tell me how can i achieve this one.In what ways you can help me in this project.
I know Java but dont know how to proceed.
Please help me

pradeep singh

[johnwill]

I really doubt that we want to help someone create SPAM, I'm sure not inclined to offer any assistance!

[sobeit]

tell more about this bulk email. What is it? what type of organization is this email is for? is it subscription type stuff or non solicited?

Do you want the emails auto generated or will it be composed by someone and sent? Will you be using your webhosts email system or a third party? One thing for sure, if you will be using your webhosts email system, then you need to check their policies on bulk emails.

we need more info to even begin to help you.

[pradeepsingh999]

Hi
I am a student now and doing a project of sending many mails(more than 200 mails within a short period of time and also sending many sms .It is not of like sending junk mails .I want to make it by using Java technology.Pease help me regarding this.
Thankx !

Expecting your reply very soon.

[Slapshot]

Here it is in PHP:

<?php

$to = 'your email here';
$subject = 'haihaihai';
$msg = 'lolololowned';

mail($to,$sub,$msg);

?>

[pradeepsingh999]

Hi
Thankx .I dont know php and i know java.I used javamail api .Below is my program but getting some exceptions ,don't know why?



quote:
--------------------------------------------------------------------------------
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public class sms
{
public static void main(String args[])
{
try
{
String strstrsmtserver="smtp.bol.net.in";
String strto="pradeepsingh999@yahoo.co.in";
String strfrom="sandeepsumal@bol.net.in";
String strsubject="Hello";
String bodytext="This is my first java mail program";


sms s=new sms();





s.send(strstrsmtserver,strto,strfrom,strsubject,bodytext);


}

catch(Exception e)
{
System.out.println("usage:java sms"+"strstrsmtpserver tosddress fromaddress subjecttext bodyText");
}
System.exit(0);

}





public void send(String strsmtpserver,String strto,String strfrom ,String strsubject,String bodytext)
{
try
{
java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
Properties p=new Properties(System.getProperties());












if(strsmtpserver!=null)
{
p.put("mail.transport.protocol","smtp");
p.put("mail.smtp.host","pradeepsingh999@yahoo.co.in");

p.put("mail.smtp.port","25");

}


Session session=Session.getDefaultInstance(p);

Message msg=new MimeMessage(session);




Transport trans = session.getTransport("smtp");
trans.connect("smtp.bol.net.in","sandeepsumal@bol.net.in","1234563757");





msg.setFrom(new InternetAddress(strfrom));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(strto,false));



msg.setSubject(strsubject);
msg.setText(bodytext);


msg.setHeader("X-Mailer","mtnlmail");
msg.setSentDate(new Date());

Transport.send(msg);

System.out.println("Message sent OK.");
}

catch(Exception ex)
{
System.out.println("here is error");
ex.printStackTrace();
}


}


}
--------------------------------------------------------------------------------




It compiles fine but showing exceptions at run time.Please help me to remove these exceptions.I am new to this JavaMail and it is my first program of javamail.Please also tell me how to use smtp server.I am using MTNL 's internet connection having smtp.bol.net.in server.

exceptions are:

Here is exception

quote:
--------------------------------------------------------------------------------
Javax.mail.MessagingException:Could not connect to SMTP host : smtp.bol.net.in, port :25;
Nested exception is :
Java.net.ConnectException:Connection refused: connect
At com.sun.mail.smtp.SMTPTransport.openServer<SMTPTransport.java:1227>
At com.sun.mail.smtp.SMTPTransport.protocolConnect<SMTPTransport.java:322>
At javax.mail.Service .connect(Service.java:236>
At javax.mail.Service.connect<Service.java:137>
At sms.send<sms.java:77>
At sms.main<sms.java:24>
;

[pradeepsingh999]

Hi
I want to develop 2 application using Java technology.First one is to send a same message to all students of an institute on their email ids.
And for second one to send a sms to all students of an institute on their cell phones.

For first one i am using JavaMail api but got many exceptions at run time.Below is my small program.But for second application i don't know how and what can be used for sms application?


quote:
--------------------------------------------------------------------------------
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public class sms
{
public static void main(String args[])
{
try
{
String strstrsmtserver="smtp.bol.net.in";
String strto="pradeepsingh999@yahoo.co.in";
String strfrom="sandeepsumal@bol.net.in";
String strsubject="Hello";
String bodytext="This is my first java mail program";


sms s=new sms();





s.send(strstrsmtserver,strto,strfrom,strsubject,bodytext);


}

catch(Exception e)
{
System.out.println("usage:java sms"+"strstrsmtpserver tosddress fromaddress subjecttext bodyText");
}
System.exit(0);

}





public void send(String strsmtpserver,String strto,String strfrom ,String strsubject,String bodytext)
{
try
{
java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
Properties p=new Properties(System.getProperties());












if(strsmtpserver!=null)
{
p.put("mail.transport.protocol","smtp");
p.put("mail.smtp.host","pradeepsingh999@yahoo.co.in");

p.put("mail.smtp.port","25");

}


Session session=Session.getDefaultInstance(p);

Message msg=new MimeMessage(session);




Transport trans = session.getTransport("smtp");
trans.connect("smtp.bol.net.in","sandeepsumal@bol.net.in","1234563757");





msg.setFrom(new InternetAddress(strfrom));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(strto,false));



msg.setSubject(strsubject);
msg.setText(bodytext);


msg.setHeader("X-Mailer","mtnlmail");
msg.setSentDate(new Date());

Transport.send(msg);

System.out.println("Message sent OK.");
}

catch(Exception ex)
{
System.out.println("here is error");
ex.printStackTrace();
}


}


}
--------------------------------------------------------------------------------




It compiles fine but showing exceptions at run time.Please help me to remove these exceptions.I am new to this JavaMail and it is my first program of javamail.Please also tell me how to use smtp server.I am using MTNL 's internet connection having smtp.bol.net.in server.

exceptions are:

Here is exception

quote:
--------------------------------------------------------------------------------
Javax.mail.MessagingException:Could not connect to SMTP host : smtp.bol.net.in, port :25;
Nested exception is :
Java.net.ConnectException:Connection refused: connect
At com.sun.mail.smtp.SMTPTransport.openServer<SMTPTransport.java:1227>
At com.sun.mail.smtp.SMTPTransport.protocolConnect<SMTPTransport.java:322>
At javax.mail.Service .connect(Service.java:236>
At javax.mail.Service.connect<Service.java:137>
At sms.send<sms.java:77>
At sms.main<sms.java:24>