Most of them were due to an outage we had on a "legacy application" due to some sort of screwups with the VMs it was running on. This caused reps to hammer me with questions about our SLAs. Of course I had no answer.

Many more emails were from offshore devs from a project I'm not normally involved with who didn't understand our specs.

There were also a smattering of issues with reps getting calls that our app was down. Ask a few questions and it turns out the person is using it on a train in a tunnel in the middle of iowa type of situation. It's a web app.