Who tf keeps their phone off dnd at night? The last thing I want in the middle of the night is to be woken up by some email spam.
That said I have a rule set up which allows calls to go through if they are from my favorites list, just in case they're dying.
Oof are you effectively always on call until 10pm every day? I have on call rotations with week long 24 hour shifts, but luckily I only have to deal with it every 2 months. Having daily late night calls just sounds dreadful.