Sometimes, !selfhost isn't so fun.
I had to get the cable modem replaced yesterday. I have to give #Comcast Business credit: They were out within a couple hours, which is a lot faster than I expect from anybody in this space.
Unfortunately, it turns out that a couple of my DNS secondaries had broken.
Unfortunately, it turns out that these cable modems ship with some default settings that block #email and #dns.
Unfortunately, I didn't realize anything was wrong for several hours.
#OUCH!!!!!