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Java Mail

Posted on 2010-09-08
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Last Modified: 2012-05-10
Hi Expert

I have a sample code that sends out mail but I got this Error


Exception in thread "main" java.lang.NoClassDefFoundError: javax/activation/DataSource
      at MailClient.sendMail(MailClient.java:21)
      at MailClient.main(MailClient.java:55)

it's  failing at not sure why

      Message message = new MimeMessage(session);



import java.util.*;

import java.io.*;

import javax.mail.*;

import javax.mail.internet.*;

import javax.activity.*;

import javax.sql.DataSource;



public class MailClient {



	public void sendMail(String mailServer, String from, String to,

			String subject, String messageBody) throws MessagingException,

			AddressException {

		// Setup mail server

		Properties props = System.getProperties();

		props.put("mail.smtp.host", mailServer);



		// Get a mail session

		Session session = Session.getDefaultInstance(props, null);



		// Define a new mail message

		Message message = new MimeMessage(session);

		message.setFrom(new InternetAddress(from));

		message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

		message.setSubject(subject);



		// Create a message part to represent the body text

		BodyPart messageBodyPart = new MimeBodyPart();

		messageBodyPart.setText(messageBody);



		// use a MimeMultipart as we need to handle the file attachments

		Multipart multipart = new MimeMultipart();



		// add the message body to the mime message

		multipart.addBodyPart(messageBodyPart);



		// add any file attachments to the message



		// Put all message parts in the message

		message.setContent(multipart);



		// Send the message

		Transport.send(message);



	}



	public static void main(String[] args) {

		try {

			MailClient client = new MailClient();

			String server = "mailserver.com";

			String from = "Anthonio.Booysen@investec.co.za";

			String to = "Anthonio.Booysen@investec.co.za";

			String subject = "Test";

			String message = "Testing";



			client.sendMail(server, from, to, subject, message);

		} catch (Exception e) {

			e.printStackTrace(System.out);

		}



	}

}

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Question by:abooysen2
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7 Comments
 
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Accepted Solution

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ksivananth earned 125 total points
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you should have activation.jar in the classpath!
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Author Comment

by:abooysen2
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add the activation.jar got a new Error now. Is this on my side or just a fire wall issue

javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
      class com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for Anthonio.Booysen@investec.co.za

      at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1130)
      at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:525)
      at javax.mail.Transport.send0(Transport.java:151)
      at javax.mail.Transport.send(Transport.java:80)
      at MailClient.sendMail(MailClient.java:42)
      at MailClient.main(MailClient.java:55)
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LVL 26

Expert Comment

by:ksivananth
Comment Utility
it may be an invalid address as per the SMPT server you use, talk to your adminsitrator!
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LVL 40

Expert Comment

by:gurvinder372
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Author Comment

by:abooysen2
Comment Utility
I took the smtp server address from a other project and verified it with my outlook. Does this mean the firewall does not allow me to sent mails?
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LVL 26

Expert Comment

by:ksivananth
Comment Utility
could be an authentication issue... check with mail server admin...
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Author Comment

by:abooysen2
Comment Utility
ok Thanks
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