I am using my hotmail account for several years to allow a home automation software to send alerts. I have configured outbound emails for smtp.live.com on port 587. This has been working great for years. It has stopped working since June. Nothing else has changed. I double checked password/settings... The home automation client (software did not change) runs on Windows Server 2012. I can login to my homtail account through a web client and send emails from there.