Sending Mail using Java

Hi,

I am new to Java.

I want to know how to send Mail message using Java.

Can any one tell me the steps.

I used Java Mail sample source code , but i am getting error at transport.send().

Thanks in advance

What error did you get? Can you post the stack trace?

Maneesh Godbole wrote:What error did you get? Can you post the stack trace?

Hi,

This is the error i got.

--Exception handling in msgsendsample.java
javax.mail.SendFailedException: Sending failed;
nested exception is:
class javax.mail.MessagingException: Could not connect to SMTP host: 10.40.9.50, port: 25, response: 421

at javax.mail.Transport.send0(Transport.java:218)
at javax.mail.Transport.send(Transport.java:80)
at Emailmsg.main(Emailmsg.java:43)

Is there an SMTP server running at that IP and port? Do you have a firewall running (which is probably blocking the port access)

Maneesh Godbole wrote:Is there an SMTP server running at that IP and port? Do you have a firewall running (which is probably blocking the port access)

Hi,

No. firewall is off.

Maneesh Godbole wrote:Is there an SMTP server running at that IP and port?

To check your SMTP server you can use telnet commands to test how to send your email.

eg telnet hostname 25

HELO <domainname>

Maybe the smtp server requires special authentication.

Notice the response code:

class javax.mail.MessagingException: Could not connect to SMTP host: 10.40.9.50, port: 25, response: 421

According to SMTP spec:

421: Service not available, closing transmission channel

That means there is a server at the specified IP but it does not have SMTP service.

If this help:

1. I used Apache common mail.

2. For one open wifi A, I can send the mail perfectly.

3. With the same code, I have the same issue with anothe open wifi B (see below error). So somewhere, there is a blockage in the wifi B. I am interest to know what/where exactly is.