The bottom bar of the inbox has these tabs, left to right:
- Mail — your email list.
- People — contacts and groups; see People.
- Calendar — the Integrated Calendar; see Calendar.
- To Do — Tasks, where Reply Later and Done mail waits, alongside a Screener tile and contacts.
- Compose — start a new email.
Two more can appear depending on the time of year and your settings: a World Cup tab while that is running, which you can switch off with Hide World Cup under Settings | Global Settings | Advanced Features, and an Apps tab that is off by default.
Whether the tabs show text labels or icons alone depends on the Main List Footer style — see Customize Appearance.
