Need help with Mail
my mail on my MacBook Pro opens then quits immediately, what do i do
MacBook Pro 13″, OS X 10.11
Question marked as
Try safe mode see if it helps.
https://support.apple.com/en-us/HT201262
Note: Safe mode prevents your Mac from loading certain software as it starts up, including login items, system extensions not required by macOS, and fonts not installed by macOS. It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. And it deletes some system caches, including font caches and the kernel cache, which are automatically created again as needed.