On the View tab, in the Current View group, choose Change View > Apply Current View to Other Mail Folders. In the Apply View dialog box, select each folder that you want to apply the view to.

Within each view, you can also move, add, remove, or resize columns so that information is presented in the way that you want to see it. This illustration shows the main elements of the Outlook window.

You can change the appearance of the message list and reading pane in Outlook. Email in the message list can be displayed as individual messages or grouped by conversation.

To turn on or move the Reading Pane: On the View tab, under Layout, select Reading Pane, and then select Right or Bottom. Selecting Off closes the Reading Pane only for the folder you're in.

In classic Outlook, select the View tab. Select Show Focused Inbox. The Focused and Other tabs will appear at the top of your mailbox. You’ll be informed about email flowing to Other, and you can …

View your Outlook email messages arranged by conversations to see messages that share the subject line grouped together.

The To-Do Bar is one of the panes you can add to classic Outlook for Windows. You can use the To-Do Bar to display your upcoming calendar events, your task list, or your favorite contacts.

In new Outlook, on the ribbon, select the View tab. Select Folder pane. Select Folder list, then Show.

Similar to the To-Do Bar in classic Outlook, the My Day pane offers different options to customize the view, along with quick access to add a New event and Add a task, wherever you are.

To change where the view is available, select an option under Can be used on, and then select OK. In the Advanced View Settings: New View dialog box, select the options that you want to use.