mac Mail app won't open view window.
The other day the viewer windows (all columns) for the Mac Mail app disappeared and I have not found a way to bring them back. I get different behavior when I try to open Mail from the dock icon or when I try to open it from the Applications folder. The app shows that it quits and opens and shows a badge with new mail in the dock icon. But that's all.
If I open from Applications, I get a menu bar and dropdown lists from the menu items. For instance, I can see Mail and under it Preferences shows up in a list. When I click Preferences, no window opens. And, the menu bar doesn't persist. And, nothing I click makes a window for viewing my inbox contents or other mailbox contents visible. I'm in macOS 11.0.1 on an iMac from late 2015.
I can see my recently read and unread mail from my other devices, so I can sort of manage recent stuff. But I don't have access to mailboxes where I've archived and categorized past emails. I'd like to have the Mail on my iMac back.
iMac 21.5″, macOS 11.0
