cannot get into email
I recently changed an email account password. It works on everything except my MacBook Pro. I change it is Account Settings, but still will not let me get into my emails.
MacBook, OS X 10.11
Quit Mail and relaunch— and test.
Reboot the machine — and test
SafeBoot https://support.apple.com/en-us/HT201262
Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test, rebbot and test.
Troubleshoot email problems in Mail on Mac - Apple Support