Mail message content not opening fully on iMac with Catalina 10.15.7
Since a few weeks the content of a message does not open in full on the righthand side automatically. I only see a few lines. When I double click on the message it opens in a separate window. What do I have to do to get it automatically? I have an iMac with 10.15.7 Catalina
[Re-Titled by Moderator]
iMac 21.5″, macOS 10.15