Rfc822 Compliance issue line added by system POTENTIAL Spam

Question

Hello,
We have a problem with below said code...
sun.net.smtp.SmtpClient mail = new sun.net.smtp.SmtpClient ( "mail.primary-domain.com" );
mail.from ( "[email protected]" );
mail.to ( "[email protected]" );
PrintStream msg = mail.startMessage ( );
msg.println ( "To: [email protected]" );
msg.println ( "Subject: Hello!" );
msg.println ( );
msg.println ( "Hello " );
msg.closeServer ();
I am getting the mail as
Subject: none
From :'rfc822 Compliance issue line added by system POTENTIAL Spam'
To: 'rfc822 Compliance issue line added by system POTENTIAL Spam" <nobody@????.com>'
Our smtp server is hosted on primary-domain. For secondary-domain, I created MX record pointed to primary-domain.
Why I am getting this zunk in From and To address.
Please Help me with this problem.
Thanks in advance,
V.T.Krishna.

Answer 1

You are trying to use your mail server (primary-domain.com) to send mail that appears to have come from a different mail server (second-domain.com). This is a favourite trick of spammers. If you want to do this you should connect to the second-domain mail server and use it. Or you should use a from-address that belongs to the primary-domain.