Generally, if this method doesn’t lead you to another human within a day, you’re already in really deep shit.
So by that point it’s walk or die. The hunger will subside after a day and your reptile brain will release loads of dopamine and adrenaline to keep you going.
You won’t find anything in the woods that’s quick to acquire without tools, nourishing, and easy to identify as safe to eat. Except maybe berries (if you know them).
Setting up Alpine or Mutt with multiple SMTP accounts is an exercise in frustration.