E-mails not loading
My e-mails are not loading in Mail. Thousands of e-mails are "there", but not showing their contents. The only thing I can see is the sender and subject. It won't even let me reply to an e-mail. Connection is fine.
iMac (Retina 5K, 27-inch, Late 2015), OS X El Capitan (10.11.6)