Configuring JNDI Javamail resource over SSL for SMTP

You declare your JAVAMAIL resource into the server.xml (or in the appropriate context file in your configuration directory) file of your tomcat :

              <Resource name="mail/MailServer" auth="Container"
            type="javax.mail.Session"
            mail.smtp.host="smtp.mailserver"
    mail.smtp.port="465"
    mail.smtp.auth="true"
    mail.smtp.user="myuser"
    password="mypassword"
    mail.smtp.starttls.enable="true"
    mail.smtp.socketFactory.class="javax.net.ssl.SSLSocketFactory"
  />

Then your resource is accessible via this URI in your webapp :

java:comp/env/mail/MailServer

Also, you must copy the two files
activation.jar and mail.jar in your tomcat common/lib server.

You may refer to the JIRA documentation where I had this hint

http://www.atlassian.com/software/jira/docs/v3.13/smtpconfig.html