send without authentication mail using java

Hi,

I checked your code:
props.put("mail.smtp.host", "mail host name");

You have to provide the value for "mail host name". For example:

props.put("mail.smtp.host", "mail.mydomain.com");

After providing the the smtp server name you should be able to send the email.

Note: Make sure that your smtp server is configured to send email without authentication. In most of the case it configured to send email without authentacation.

Thanks