Proble in sending email thru java program

[Mike Thomson]

I am trying to send a email through a ajava program. But I want to test it in my machine. How to test it? I am having outlook express in my pc and how to configure the mail host and settings. i an using the below program;

package com.example;
 
import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
 
/**
 * Simple demonstration of using the javax.mail API. Run from the command line.
 * Please edit the implementation to use correct email addresses and host name.
 */
public final class Emailer {
 
public static void main(String... aArguments) {
Emailer emailer = new Emailer();
// the domains of these email addresses should be valid,
// or the example will fail:
emailer.sendEmail("[e-mail]", "[e-mail]", "Testing 1-2-3", "Testing 1-2-3");
}
 
/**
 * Send a single email.
 */
public void sendEmail(String aFromEmailAddr, String aToEmailAddr, String aSubject, String aBody) {
// Here, no Authenticator argument is used (it is null).
// Authenticators are used to prompt the user for user
// name and password.
Session session = Session.getDefaultInstance(fMailServerConfig, null);
MimeMessage message = new MimeMessage(session);
try {
// the "from" address may be set in code, or set in the
// config file under "mail.from" ; here, the latter style is used
// message.setFrom( new InternetAddress(aFromEmailAddr) );
message.addRecipient(Message.RecipientType.TO, new InternetAddress(aToEmailAddr));
message.setSubject(aSubject);
message.setText(aBody);
Transport.send(message);
}
catch (MessagingException ex) {
System.err.println("Cannot send email. " + ex);
}
}
 
/**
 * Allows the config to be refreshed at runtime, instead of requiring a
 * restart.
 */
public static void refreshConfig() {
fMailServerConfig.clear();
fetchConfig();
}
 
// PRIVATE //
private static Properties fMailServerConfig = new Properties();
static {
fetchConfig();
}
 
/**
 * Open a specific text file containing mail server parameters, and populate
 * a corresponding Properties object.
 */
private static void fetchConfig() {
InputStream input = null;
try {
// If possible, one should try to avoid hard-coding a path in this
// manner; in a web application, one should place such a file in
// WEB-INF, and access it using ServletContext.getResourceAsStream.
// Another alternative is Class.getResourceAsStream.
// This file contains the javax.mail config properties mentioned
// above.
input = new FileInputStream("D:\\temp\\MyMailServer.txt");
fMailServerConfig.load(input);
}
catch (IOException ex) {
System.err.println("Cannot open and load mail server properties file.");
}
finally {
try {
if (input != null)
input.close();
}
catch (IOException ex) {
System.err.println("Cannot close mail server properties file.");
}
}
}
}
 

Config file:

Send an email 
Topic : 
 
The JavaMail API is not part of core Java SE, but an optional extension. In addition, it is required in Java Enterprise Edition. The JavaMail packages can be accessed in two ways : 
by placing j2ee.jar in the classpath 
or, by placing both mail.jar and activation.jar in the classpath 
The javax.mail API uses a properties file for reading server names and related configuration. These settings will override any system defaults. Alternatively, the configuration can be set directly in code, using the JavaMail API. 
Example 
 
An email configuration file (to run the example, substitute valid values for the uncommented items) : 
  
 
# Configuration file for javax.mail 
# If a value for an item is not provided, then 
# system defaults will be used. These items can 
# also be set in code. 
 
# Host whose mail services will be used 
# (Default value : localhost) 
mail.host=mail.blah.com 
 
# Return address to appear on emails 
# (Default value : username@host) 
mail.from=[e-mail] 
 
# Other possible items include: 
# mail.user= 
# mail.store.protocol= 
# mail.transport.protocol= 
# mail.smtp.host= 
# mail.smtp.user= 
# mail.debug= 
 
 

[Ulf Dittmer]

What do you mean by "testing on your machine" - do you want to run a mail server locally? While that's certainly possible -look into Apache James for that- it shouldn't be necessary. The mail server you use with Outlook should work fine. You need to set the mail.smtp.host property with the host name of the mail server, and you may need an Authenticator for supplying the password to go with the email address. You'll find many code samples and further implementation details here.

Let's move this to the Other Java APIs forum where JavaMail gets discussed.