Create folders to organize emails, move messages, and add folders to your Favorites folder for easy access.

Create a folder

1. Right-click Inbox and select New Folder.
2. Type a name for the folder and press Enter.

Create a subfolder

1. Right-click a folder and select New Folder.
2. Type a name for the folder and press Enter.

Move messages into a folder

1. Select an email message.
2. Drag and drop it into a folder.

Note: To move more than one email, select an email, hold down the Shift key and select other messages, and then click, drag, and drop them into a folder.

Add a folder to Favorites

• To add a folder to Favorites, right-click the folder, and then select Show in Favorites.

Note: You can also select the folder, and then drag and drop it in Favorites.

Always Move Messages

1. Select an email message.
2. Select Home > Move > Always Move Messages in This Conversation…
3. In the Always Move Conversation box:

o    Select a folder if one already exists and click OK.

o    If a folder doesn't exist, select New... to create a new folder.

o    In the Create New Folder box, enter a name for the new folder, and select OK.

4. Select OK to exit the Always Move Conversation box.

https://support.office.com/en-us/article/video-organize-email-by-using-folders-0616c259-4bc1-4f35-807d-61eb59ac79c1?ui=en-US&rs=en-US&ad=US