Developed Complete Mail System

Question

Hi All
I have completed the whole Email System by using the Java Mail API's.
It has the features like, Send, Recieve, Multiple Folders, HTML Composing, Block Sender, Sorting, Filters, Address Book, etc.
If any java programmer wants help on Javamail then mail me at.
[email protected]
Regards

Answer 1

I have a problem with the program below. I ran the same code on two(2)
different machine. One is running okay and the other machine, I got the
error below.
Microsoft(R) Windows NT(TM)
(C) Copyright 1985-1996 Microsoft Corp.
C:\>set classpath
CLASSPATH=C:\Sybase\ASEP\Monclass.zip;C:\Sybase\ASEP\3pclass.zip;.;D:\extracts\c
lasses;c:\sybtools\ASEP\Monclass.zip;c:\sybtools\ASEP\3pclass.zip;D:\SQLLIB\java
\db2java.zip;D:\SQLLIB\java\runtime.zip;d:\extracts\classes\FTPProtocol.jar;d:\e
xtracts\classes\mail.jar;d:\extracts\classes\activation.jar;d:\JBuilder4\jdk1.3\
jre\lib\rt.jar;d:\JBuilder4\jdk1.3\lib\tools.jar;d:\JBuilder4\jdk1.3\lib\dt.jar;
d:\jsdk\lib\jsdk.jar;d:\extracts\classes\smtp.jar;d:\extracts\classes\pop3.jar;d
:\extracts\classes\mailapi.jar;
C:\>javac SendMessage.java
C:\>java SendMessage [email protected] [email protected]
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: IOException while sending message;
nested exception is:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME ty
pe text/plain; charset=us-ascii
at javax.mail.Transport.send0(Transport.java:219)
at javax.mail.Transport.send(Transport.java:81)
at SendMessage.main(SendMessage.java:40)
Here's my code.
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class SendMessage
public static void main(String args[]) {
if (args[0] == null) {
System.out.println("from email, parameter(1) is blank");
if (args[1] == null) {
System.out.println("to email, parameter(2) is blank");
String from = args[0];
String to      = args[1];
String mailServer = "ustjc3notes6.ustrust.com";
java.util.Properties properties = System.getProperties();
properties.put("mail.host", mailServer);
properties.put("mail.transport.protocol", "smtp");
Session session = Session.getDefaultInstance(properties, null);
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.setRecipients(Message.RecipientType.TO,
                         InternetAddress.parse(to, false));
message.setSubject("Test");
message.setText("Test Mail");
Transport.send(message);
catch(MessagingException mex) {
mex.printStackTrace();
} // end void main
}