Relay denied exception!! Why can i do the same with sendmail???

Question

Hi,
Everytime I try to send email from my code, I get the following exception:
class javax.mail.SendFailedException: 550 5.7.1 <[email protected]>... Relaying denied
But if I try to use sendmail and send email to the same address with the same SMTP host, it will work!
So, r there some parameters that i need to set, or some settings that I missed in order for this to work?
My local SMTP does not need auth. and the code works fine for any mail sent to the internal mail box.
Please advise.
Thank you.

Answer 1

Many mail servers are configured to prevent mail from being sent if the originating email address is not in the domain.... other wise they have to authenticate before being allow to be sent.
You might want to look into this as a possible solution....
Transport tx = session.getTransport("smtp");
tx.connect(host, username, password);
tx.sendMessage(msg, msg.getAllRecipients());
-Dave