Java mail problem(working in intranet,but not working in iternet)

[sundarjothi]

Hi everyone,

I have a little problem with my java mail coding.
While i was using java mail coding in local netwok(intranet) properly executing.
But i was used in internet, it is not working.
I told my problem(java mail is not working prperly) to my server maintainer(service provider).
They told "we loaded all mandatory jar files in Tomcat server please verify your coding"
And told " please check your smtp protocal" and wrote code
u shoud use smtp as 25

other things asp and php coding are not supported in java server ..
u should send mail coding through jsp
Please check once & let us know if any problems !
Please let us know the error URL / Path if you have any more problems, thanks

please refer my coding and tell what is wrong with coding

Properties props = System.getProperties();
props.put("mail.smtp.host", host);
//props.put("mail.debug", "true");
Session session = Session.getInstance(props, null);
//session.setDebug(debug);

try {
// create a message
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
InternetAddress[] address = {new InternetAddress(to)};
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject(subject);

// create and fill the first message part
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(msgText1);

// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();

// attach the file to the message
FileDataSource fds = new FileDataSource(filename);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());

// create the Multipart and add its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);

// add the Multipart to the message
msg.setContent(mp);

// set the Date: header
msg.setSentDate(new java.util.Date());

// send the message
Transport.send(msg);
flag=true;


}catch (MessagingException mex) {
// Prints all nested (chained) exceptions as well
mex.printStackTrace();
}


please reply immediately

thanks
sundar

[Eranga]

Did you get any exception on your code?

[sundarjothi]

hi thanks,
i didnt get any exception in my program.
program still working in local network(intranet).
But program not working in internet(www).
If any changes in my program ,
please reply me.

regrads
sundar

[Eranga]

I'm looking an exception on internet. Did you debug and try on the net?

[orchid]

Does the smtp server that you are using to send out the email need a userid and password to access it? I use the gmail api to send mail via my java app and I need to supply my id and password, most smtp hosts require that.
If you are not getting any exceptions I would take a look at the host you are sending thru.

[Eranga]

You mean some kind of authentication issue can be take place there in the internet.

[sundarjothi]

Hi
thanks,
I did not use any authentication in my program .
please verify my program and reply me
If any changes need in my program.

regards
sundar

This is my coding sample

Properties props = System.getProperties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", 25);
//props.put("mail.debug", "true");
Session session = Session.getDefaultInstance(props, null);
//session.setDebug(debug);

try {
// create a message
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
InternetAddress[] address = {new InternetAddress(to)};
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject(subject);

// create and fill the first message part
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(msgText1);

// create the second message part
MimeBodyPart mbp2 = new MimeBodyPart();

// attach the file to the message
FileDataSource fds = new FileDataSource(filename);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());

// create the Multipart and add its parts to it
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);

// add the Multipart to the message
msg.setContent(mp);

// set the Date: header
msg.setSentDate(new java.util.Date());

// send the message
Transport.send(msg);
flag=true;


}catch (MessagingException mex) {
// Prints all nested (chained) exceptions as well
mex.printStackTrace();
}

[orchid]

Let me ask you this. What smtp gateway are you using to send your mail out?? Is it open, meaning can anyone in the world use it?
Or is it your company smtp gateway?
Or is it something else? Unless it is totally open, most smtp gateways have some sort of rules for using them.
Just start by telling us that, it will help debug this issue.

[sundarjothi]

Hi orchid,

i just used company smtp server only.
i did not give username,password in our company server( that means
authentication not provided in my mail coding).
I have doubt about authentication in my code.
It may cause any problem to prevent mail send to server.

please reply me.

regards,
sundar