Adding inbox icon to mail toolbar.
Since the last update on my MacBook Pro, I cannot add the inbox icon to the Mail toolbar for my two accounts. It forces me to scroll up and down my mailboxes, which is very frustrating.
MacBook, macOS 10.13
Question marked as
Make sure Favorites bar is showing.
Mail > View > “Show Favorites Bar”(at the bottom of the dropdown.
Section: Add a mailbox to Favorites
For details:
https://support.apple.com/guide/mail/use-favorite-mailboxes-mlhl6e39ca4a/mac