javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465;
  nested exception is:
	java.net.ConnectException: Connection timed out: connect

    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1961)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)
    at javax.mail.Service.connect(Service.java:295)
    at javax.mail.Service.connect(Service.java:176)
    at com.github.sunnybat.paxchecker.Email.sendMessage(Email.java:419)
    at com.github.sunnybat.paxchecker.Email.testEmail(Email.java:330)
    at com.github.sunnybat.paxchecker.Email$1.run(Email.java:349)
    at java.lang.Thread.run(Unknown Source)