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Unknown host exception

Nila dhan
Ranch Hand

Joined: Sep 15, 2005
Posts: 160
Hi pals,
I am trying to send email from my application .But the exception occurs

javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Unknown SMTP host:

What could be wrong here.Any suggestions?

BTW if i send mail from another system using the same application,it works!!!
Ulf Dittmer
Marshal

Joined: Mar 22, 2005
Posts: 41599
    
  55
What do you specify as the SMTP host? It looks like it is not recognized or even empty.


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Sandeep Murthy
Ranch Hand

Joined: Oct 05, 2005
Posts: 34
i) Check if you have the required jar files ( mailer.jar, activation.jar, ...) in your class path.
ii) Disable any antivirus program running while trying to send mails. The antivirus may be scanning the ports and block it.


SCJP 1.4
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Unknown host exception