Unable to send an email using SMTP (Getting javax.mail.MessagingException: Could not convert socket to TLS;)

Question

I have written the following code for sending email using javamail API through SMTP as TLS as SSL is not supported but I ended up with the following exception. Please see my

Answer 1

Make sure your antivirus software is not blocking the application. In my case Avast was blocking me from sending e-mails in a Java SE application.