I have written an application using java mail api. When i try to send email i get SendFailedException Invalid Addresses; nested exception is: class com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for firstname.lastname@example.org .
I understand that the server is not allowing relaying. I need to understand one thing. My system is in the same network as the smtp server.My administrator says that all messages from this address range is allowed to send mails.but i still get this problem. my application is running on tomcat5 web server and my company uses exchange server for providing smtp services. please give me solution.
krishnan , please do not cross-post the same question in multiple forums. It wastes people's time when multiple redundant conversations take place. Please continue any discussion of this topic in the Other Java APIs forum where the post you made to the JSP forum has been moved.