Mail.app offers a unified inbox yes, but it also lets one view inboxes per-account. Just click the disclosure arrow next to the inbox in the sidebar, which disp

Mail.app offers a unified inbox yes, but it also lets one view inboxes per-account. Just click the disclosure arrow next to the inbox in the sidebar, which displays each account’s inbox of individual viewing. Mail folders are all shown under sections dedicated to each account in the sidebar.