![Postfix 2.9 Upgrade](https://i0.wp.com/www.stevejenkins.com/blog/wp-content/uploads/2012/08/postfix_upgrade.jpg?resize=570%2C300&ssl=1)
I recently installed APC’s PowerChute Network Shutdown so that my desktop could be alerted via a network connection from a SmartUPS 1500 with an on-board AP9630 Network Management Card to shut down when the power got low. Installation went fine (apart from having to manually install the latest version of […]