There's no sign that you're ever setting the from address to an actual address, so there's nowhere for the reply to come.
That may not be the problem in your production code, but it looks like a problem here...
So I solved the problem, and here is what I found:
1- You have to update to Java Mail API 1.4.2 to make everything works fine 2- Write the text/calendar part of your message like the following:
package com.xx.xx;
import java.util.Properties;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.util.ByteArrayDataSource;
public class Email
{
public Email()
{
}
/*
@param args
*/
public static void main(String[] args)
{
try
{
Email email = new Email();
email.send();
}
catch (Exception e)
{
e.printStackTrace();
}
}
public void send() throws Exception {
try {
String from = "[email protected]";
String to = "[email protected]";
Properties prop = new Properties();
prop.put("mail.smtp.host", "mailhost");
Session session = Session.getDefaultInstance(prop, null);
// Define message
MimeMessage message = new MimeMessage(session);
message.addHeaderLine("method=REQUEST");
message.addHeaderLine("charset=UTF-8");
message.addHeaderLine("component=VEVENT");
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject("Outlook Meeting Request Using JavaMail");
StringBuffer sb = new StringBuffer();
StringBuffer buffer = sb.append("BEGIN:VCALENDAR\n"+
"PRODID:-//Microsoft Corporation//Outlook 9.0 MIMEDIR//EN\n"+
"VERSION:2.0\n" +
"METHOD:REQUEST\n" +
"BEGIN:VEVENT\n" +
"ATTENDEE;ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:[email protected]\n" +
"ORGANIZER:MAILTO:[email protected]\n" +
"DTSTART:20051208T053000Z\n" +
"DTEND:20051208T060000Z\n" +
"LOCATION:Conference room\n" +
"TRANSP:OPAQUE\n" +
"SEQUENCE:0\n" +
"UID:040000008200E00074C5B7101A82E00800000000002FF466CE3AC5010000000000000000100\n" +
" 000004377FE5C37984842BF9440448399EB02\n" +
"DTSTAMP:20051206T120102Z\n" +
"CATEGORIES:Meeting\n" +
"DESCRIPTION:This the description of the meeting.\n\n" +
"SUMMARY:Test meeting request\n" +
"PRIORITY:5\n" +
"CLASS:PUBLIC\n" +
"BEGIN:VALARM\n" +
"TRIGGER:PT1440M\n" +
"ACTION:DISPLAY\n" +
"DESCRIPTION:Reminder\n" +
"END:VALARM\n" +
"END:VEVENT\n" +
"END:VCALENDAR");
// Create the message part
BodyPart messageBodyPart = new MimeBodyPart();
// Fill the message
messageBodyPart.setHeader("Content-Class", "urn:content-classes:calendarmessage");
messageBodyPart.setHeader("Content-ID","calendar_message");
messageBodyPart.setDataHandler(new DataHandler(
new ByteArrayDataSource(buffer.toString(), "text/calendar")));//very important
// Create a Multipart
Multipart multipart = new MimeMultipart();
// Add part one
multipart.addBodyPart(messageBodyPart);
// Put parts in message
message.setContent(multipart);
// send message
Transport.send(message);
} catch (MessagingException me) {
me.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
3- Replace your variable, and you are good to go!