[Update 17:15 PST] Things look to be in good shape. Thanks for your patience!
-tom

[Update 17:00 PST] Rebooting now.

[Update 16:25 PST] We'll be rebooting in ~15 minutes.

[Original] We need to reboot one of our mail servers due to a security issue that has been announced for its operating system. Not exactly sure of the time but will update here when we know specifically. Guessing 1.5 hours from now but need to wait for various "build" processes to complete.

-tom