Outlook Folders

In new Outlook for Windows, select View → Sort Folders → Order folders A to Z to alphabetize your folders and subfolders.^1^

If the folders are collapsed, expand each parent folder to see its alphabetized subfolders.

If you use classic Outlook

Select Folder → Clean Up → Show All Folders A to Z.^1^

To switch back to manual ordering

In new Outlook:

1. Select View → Folder pane → Custom folder order.
2. Drag folders into position, or right-click a folder and choose Move up or Move down.^1^

Some special folders, including Search, Shared with me, and In-place archive, cannot be moved and remain at the end of the account’s folder list.

References

1. New Outlook (#tab/new-outlook)