cannot connect to smtp host

[nickyeng]

i know alot of people faced this problem before.
i searched google.com i search javaranch.com, no one article can help me solve the problem.
I runs it in my localhost server, it runs well.
But when i runs it in my company's server, it give this error :
----
javax.mail.SendFailedException: Sending failed; nested exception is: class javax.mail.MessagingException: Could not connect to SMTP host: mail.as.com.my, port: 25; nested exception is: java.net.ConnectException: Connection timed out: connect
----

i used telnet to ping the mail server, it was okay and give me 220. This is in localhost.
But when i try to telnet the mail server in company's remote pc, it said cannot open a connection to host on port 25

could someone list down the possible causes so that i and everyone else can know how many possible causes for this problem.

I'll really appreciate if someone can help..
thanks in advance.

~Nick

 
String message = "halo" + " world";
Properties props = new Properties();
props.put("mail.smtp.port", "25");
props.put("mail.smtp.host","mail.as.com.my");
 
 
// create some properties and get the default Session
Session ss = Session.getInstance(props, null);
ss.setDebug(true);
 
 
MimeMessage msg = new MimeMessage(ss);
 
InternetAddress addressfrom = new InternetAddress("[e-mail]");
msg.setFrom(addressfrom);
 
InternetAddress addressTo = new InternetAddress(to);
msg.addRecipient(Message.RecipientType.TO, addressTo);
 
msg.setSubject(subject);
msg.setContent(message, "text/plain");
 
Transport.send(msg);
 

[etiainen]

Well, I can't telnet the host either. You might wanna check if its domain name is properly registered.
Try using ip number in your code...
Before I tried this one of my guesses was that your company network might be blocking trafic over port 25. You might check that too, but I think DNS is the problem.

[JosAH]

Well, I can't telnet the host either. You might wanna check if its domain name is properly registered.

I guess the OP doesn't want to shows us the real name of his/her smtp server;
I don't recognize the top level domain name of "mail.as.com.my"; and indeed
it can't be ping'd nor telnet'd at all.

kind regards,

Jos

[nickyeng]

I guess the OP doesn't want to shows us the real name of his/her smtp server;
I don't recognize the top level domain name of "mail.as.com.my"; and indeed
it can't be ping'd nor telnet'd at all.

kind regards,

Jos

yeah, you're right.
i didn't show the correct name.

by the way, i settled this problem already.
My company block on port 25 and any connection to it.
It is settled using my director's mail code.

thanks anyway.