Access pop3 server

Question

hii,
I'm using java mail api to access pop3 server and doing like :
public void accessSrv()
        Session session = null;
        Store store = null;       
       try
           session = Session.getDefaultInstance(System.getProperties(), null);
           store = session.getStore("pop3");
           store.connect("host", "username","password");       
           System.out.println("Srv connected...");
       catch(Exception E)
           E.printStackTrace();
    }Here an exception is being occured..
javax.mail.AuthenticationFailedException: EOF on socket.
could you else please tell me the solution...
thanks
Dev

Answer 1

ejp wrote:
Without a connection, that exception is entirely impossible.
Connection problems are usually no code problem, but rather a configuration problem. For example: is your firewall blocking the connection?The firewall can't have anything to do with it.
Don't be so sure. Some firewalls are configured in the weirdest of ways, and may allow the connection to be made but not data to be sent over that connection (or only very specific types of data).
I once encountered one that would allow all (and only) http traffic as long as the filenames (thus the URIs) ended with .htm, ,gif, or .jpg (and only those extensions).
Obviously intended to stop downloading of zip files and executables, it caused major problems when visiting just about any dynamic website or website (and many others, including the company's own website).
@OP: I suspect the server you connected to wasn't a POP3 server, or possibly that you failed authentication by not providing a correct username or password.Would that lead to an EOF trying to read a message from the server?
I'd expect some sort of security exception instead.
EOF to me indicates that something is coming over the line but it's either not a POP message or the reader is failing to stop attempting to read when reaching the end of it.