Mail Immediately Shuts Down when Started
I have an older iMac running El Capitan. Mail has been working flawlessly since I upgraded to El Capitan over a year ago. Yesterday, mail crashed when downloading mail and now it immediately shuts down every time it is started. The iMac was rebooted in Safe Mode with no change in the result. Any idea of the next steps? Is it possible to reload mail without reloading the entire OS?
iMac, OS X 10.11