Java Mail mystery - SMTP blocked?

Question

I have a Java program which uses javax.mail to send an SMTP message. This program works fine on a Linux box, I want to emphasize that beforehand. When I try this same cod

Answer 1

I was also facing the same issue , basically it was a Java 7 issue, Just passing in JVM argument "-Djava.net.preferIPv4Stack=true", i got rid from issue .