Email account doesn't display in Mail
I have several different email accounts, and they all display their own inbox in Mail except for one, my newest account. As I recall, in the past whenever I created a new email address in Mail, it's own inbox automatically displayed. What setting did I miss this time around so that my latest email address doesn't display in Mail?
I'm running High Sierra on a 2010 27" iMac.
iMac 27″, macOS 10.13