Could not connect to SMTP host: localhost, port: 25. Telnet says 220 localhost ESMTP server ready

Question

I am using XAMPP for deploying my java application in tomcat and also using mercury mail to send emails. Now i am just testing my application with a small java program using java mail API and mercury email. I have done the necessary configuration in Mercury to setup localhost. Now when running the java program..its says

javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
  nested exception is:
    java.net.SocketException: Network is unreachable: connect
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1962)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)

While my XAMPP Mercury Server is up and running with following port numbers

25, 79, 105 , 106, 110, 143, 2224

I also tested telnet command...result is as follows..

telnet localhost 25
220 localhost ESMTP server ready.

Now I'm stuck. Since i am working from my university lab and Symantec End Point Protection is installed on the systems so i cant even check if the Firewall is causing any problems....

Answer 1

It's almost certainly Symantec End Point Protection that is causing the problem. Probably your university doesn't want you running your own mail server.