javax.mail.MessagingException: IOException while sending message

hi guys,

look at the code below

String from = "emicheyatledu@xyz.com";
String to = "xyz";
String sub = "testing mail";
String text = "content \n unable to display";

java.util.Properties props = new java.util.Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "something");
props.put("mail.smtp.port", "25");

javax.mail.Session mailSession = javax.mail.Session.getDefaultInstance(props);
javax.mail.Message simpleMessage = new javax.mail.internet.MimeMessage(mailSession);
javax.mail.internet.InternetAddress fromAddress = new javax.mail.internet.InternetAddress(from);
javax.mail.internet.InternetAddress toAddress = new javax.mail.internet.InternetAddress(to);

javax.mail.internet.MimeMultipart content = new javax.mail.internet.MimeMultipart("alternative");
javax.mail.internet.MimeBodyPart txt = new javax.mail.internet.MimeBodyPart();
javax.mail.internet.MimeBodyPart html = new javax.mail.internet.MimeBodyPart();
txt.setText( text );
html.setContent("htmlBody", "text/html");
content.addBodyPart(txt);
content.addBodyPart(html);

simpleMessage.setFrom(fromAddress);
simpleMessage.setRecipient(javax.mail.Message.RecipientType.TO, toAddress);
simpleMessage.setContent(content,"alternative");
simpleMessage.setSubject("hi");

javax.mail.Transport.send(simpleMessage);

for test, i want to send a mail but its throwing an exception

javax.mail.MessagingException: IOException while sending message;
  nested exception is:
	javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/alternative; 
	boundary="----=_Part_0_14982605.1332310506769"
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:930)
	at javax.mail.Transport.send0(Transport.java:191)
	at javax.mail.Transport.send(Transport.java:120)
	at CodeSnippet_9.run(CodeSnippet_9.java:32)
	at org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain1.eval(ScrapbookMain1.java:20)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain.evalLoop(ScrapbookMain.java:54)
	at org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain.main(ScrapbookMain.java:35)
Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/alternative; 
	boundary="----=_Part_0_14982605.1332310506769"
	at javax.activation.ObjectDataContentHandler.writeTo(Unknown Source)
	at javax.activation.DataHandler.writeTo(Unknown Source)
	at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1383)
	at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1743)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:888)
	... 10 more

i had tried by sending plaintext as well as html but i am unable to find where the problem resides
can anybody tell me about it please.

You should set the content object (type MimeMultipart) as to the setContent() method of the simpleMessage object (Message class).

I have written a similar thing here.

hi thank you for the response
I had tried the similar what you had in your blog earlier, even for that its showing the same
exception.

Raviteja Penki wrote:hi thank you for the response
I had tried the similar what you had in your blog earlier, even for that its showing the same
exception.

Please check again, the MIME type multipart/alternative is not supported:

or post your updated code here.

Raviteja Penki wrote:simpleMessage.setContent(content,"alternative");

Why don't you just use simpleMessage.setContent(content);? The method is overloaded to take a Multipart, and that's exactly what content is.

hi guys, thank you for the response, i had tried those too, even then same exception.

this was the initial code, my IDE is Eclipse, is there any problem with that ?
can anybody tell me whats the meaning of the exception.

If you're getting the same exception as in your original post -- the one which mentioned multipart/alternative -- from that code, which doesn't use multipart messages at all, then you have a fundamental usage problem. Namely you aren't running the code you think you are running.

hi

sorry, i didn't understand what you said.

In your last piece of code you only use a simple mail body, no multipart. If you still get an error about MIME type multipart/alternative that means that either your class files are not up-to-date, or you aren't running the code you think you are running (e.g. a different class).

i had tried with the two types of code and in two scenarios i got the same exception.

in the first attached piece of code i had used multipart

where as in the second attachment i didn't use it because i am trying to send just a plain text, for that i no need to mention about multipart.

and in all scenarios, mail is delivering but not the content and subject.

i am sure about which class i'm running.

Raviteja Penki wrote:i had tried with the two types of code and in two scenarios i got the same exception.

in the first attached piece of code i had used multipart

where as in the second attachment i didn't use it because i am trying to send just a plain text, for that i no need to mention about multipart.

and in all scenarios, mail is delivering but not the content and subject.

i am sure about which class i'm running.

This is getting even more confusing. In both cases you get the exception about multipart/alternative? But in spite of getting an exception, an e-mail message is still sent? In both cases? This all sounds extremely unlikely to me. So right now I don't believe any of it. Could I suggest that you document what is happening in a less confusing way? More details would help, and a less disorganized way of describing your tests would help too.

sorry for improper explanation in the last post.

In the two types of code i had attached, only a mail is delivering with out the subject and content.

for sending a plain mail in the sense only text type of mail with out HTML content, i think there is no need of specifying MULTIPART, am i right?

Raviteja Penki wrote:

for sending a plain mail in the sense only text type of mail with out HTML content, i think there is no need of specifying MULTIPART, am i right?

Yes, that's correct!

but, if i send like that,
the content is not delivering.

Raviteja Penki wrote:
but, if i send like that,
the content is not delivering.

For better help, could you re-post your latest code here?

this is the code,
i had attached the exceptions too in the earlier posts, look at those once.

Excellent idea! Now implement the second part of the idea: look at the debug output.

You are still missing the method to set content for the message body.