Apple Mail: Mailboxes with different IMAP path prefixes
Yes, the IMAP prefix can be set in Mail Preferences > Accounts > mail@example.com > Server Settings > Choose Advanced IMAP settings. Type in your "IMAP Path prefix" e.g. INBOX



Note: In previous macOS versions (e.g. El Capitan, Yosemite) you will find "IMAP Path prefix" setting below the Mail Preferences > Accounts > mail@example.com >  Advanced tab instead.