How to reinstall Mail on Mac OS X Mavericks?

Question

macOS

The situation is the following. I recently accidentally deleted Mail, after I did something there, I just restored it, but after that I can no longer send messages through the program itself. She scolds and asks me to try again or later with the selected server. How to set up the server itself or reinstall Mail?

Answer 1

Delete in your user's directory the hidden folder that corresponds to the program. Starts with a dot. This is the standard unix way.