WAR application using JavaMail API fails to send messages in JBoss EAP5 with "javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?"

Solution Verified - Updated -

Issue

A simple WAR application which uses JavaMail API fails to send messages due to the following error:

javax.mail.MessagingException: Exception reading response;
   nested exception is:
        javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 5.1.2

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