Some IMAP folders include Draft Sent Junk etc. with "caret" to view them and Some only show the inbox.

[tallwill50]

Some IMAP folders include Draft Sent Junk etc. with "caret" to view them and Some only shoe the inbox. How can I get them all to include the subfolders? I am baffled as to why identical accounts that I've created display differently. Any help would be appreciated.

 

[NoBoMac]

Looks like you've been (unintentionally?) creating a Favorites structure/setup. If you scroll down, should see the Shroom account with a caret next to it.

Steps on how to go about and fix it:

Use the sidebar in Mail on Mac

In Mail on your Mac, the Mail sidebar provides easy access to mailboxes, folders, and flagged items for your email accounts.

support.apple.com

Use favorite mailboxes in Mail on Mac

In Mail on your Mac, make a mailbox a favorite, so it’s easy to access in Favorites in the Mail sidebar or the Favorites bar.

support.apple.com