Question: Why does my Mac Mail keep displaying 'Downloading Messages'
Whenever I open my Mac Mail lately it displays 'Downloading Messages' at the bottom of my mail sidebar. The activity window also displays this activity. This morning over 803,000 messages and again now at 1pm I am at '778,000 new messages'. ??? IMAP account, OS X 10.11.6, Mail ver. 9.3 (3124)
MacBook Pro, OS X El Capitan (10.11.6)