Can not get new mail without quitting and then restarting mail
Since upgrading to El Capitan the mail app does not see new messages when manually requested. I have to quit the mail app and then restart the app. Any ideas on why this is happening? I know I have mail, but the app does not see it. I am running OS X 10.11.3 and Mail Version 9.2 (3112)
Thanks
iMac (27-inch Mid 2011), Mac OS X (10.7.5)