How to Export Your Mailbox in Outlook for Windows 11

The New Outlook for Windows is a web-based experience, while Classic Outlook is the traditional desktop application. Understanding the difference is key to knowing how to export your mailbox.

Feature	New Outlook	Classic Outlook
Export Method	Cloud-based request	Import/Export Wizard
File Format	JSON/Cloud Archive	.pst file
Speed	Takes up to 4 days	Immediate

Why export your mailbox?

Exporting your data creates a secure backup. This protects your information if your account is corrupted or if you lose access to your data. It is also useful if you want to switch to a different email service or migrate to a new computer. Finally, it helps you clear out old messages to save space on your server.

What happens when you are done?

When you export from the New Outlook, the system prepares a file for you. This process can take up to 4 days. Once it is finished, you will get an email with a link to download your data. In Classic Outlook, the process is local and happens immediately on your machine.

How to export your mailbox in New Outlook

Follow these steps to save a copy of your mailbox in the modern app:

1. Open the Outlook app on your computer.

2. 

3. Click the Settings button, which looks like a gear icon in the top right corner.

4. 

5. Click the General tab on the left. Then, click Privacy and data on the right.

6. 

7. Pick the email account you want to export.
8. Click the Export mailbox button.

9. 

10. Wait for the email notification from Microsoft with your download link.

Note: These steps do not require admin privileges.

How to export your mailbox in Classic Outlook

If you use the desktop version, you will use the Import/Export Wizard to create a .pst file.

1. Click File in the top left corner.
2. Select Open & Export, then click Import/Export.
3. Choose Export to a file and click Next.
4. Select Outlook Data File (.pst) and click Next.
5. Select the folder you want to export and ensure Include subfolders is checked.
6. Choose a location to save your file, such as C:\Users\GenericUser\Documents\OutlookBackup.pst.

Note: This process does not require admin privileges.

Troubleshooting and Common Errors

If your export fails, check for data corruption. Large files can sometimes cause performance issues. Microsoft recommends keeping your .pst file under 50GB to ensure stability. If you encounter errors, try running the Inbox Repair tool located at C:\Program Files\Microsoft Office\root\Office16\SCANPST.EXE.

Summary

Exporting your mailbox is a vital task for data safety. Whether you use the New Outlook or the Classic desktop version, creating a backup ensures your emails, contacts, and calendar entries are protected. Always store your .pst file in a secure location and consider password protection for sensitive archives. For more details, visit the official Microsoft support website.