How to Export Exchange Online Mailbox to PST? Easy Guide

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Published on
May 16th, 2025


4 minutes Read

Summary: Exchange Online Mailbox is linked with Microsoft Office 365 (formerly Office 365). It allows users to manage or access email, calendar, contacts, and tasks via a web-based interface or an email service like Outlook. However, most users export Exchange Online Mailbox to PST to backup, archive, migrate, or for other purposes. To do this process, you can use the Office 365 Backup Tool or traditional techniques. 

Further, we will be discussing all the techniques in detail, along with the step-by-step process. Additionally, we will compare the methods to help you pick the best option for exporting. Let’s start without wasting time.

Different Approaches to Move Exchange Online Mailbox to PST

In this section, you will get two manual ways to complete this process without costing you a penny. However, this procedure can be tricky for users with no technical knowledge. Also, they might face huge data loss if they skip or pick the wrong option. Instead, a professional approach is highly preferable for bulk migration and safe output. 

#1. Export PST from Exchange Online: Manual Way

Here, we will be discussing different free solutions, including: 

  • Using eDiscovery.
  • With Outlook. 

Method 1. Use the eDiscovery Feature

  1. To begin this process, sign in to your Microsoft 365 account
  2. Then, visit its Admin Centre – search and tap Security & Compliance.
  3. Later, choose Permission -> locate eDiscovery Manager and click on it.
  4. Thereafter, tick eDiscovery -> Edit icon
  5. In case the export role is not there, tap Edit Role Group.
  6. Further, hit Edit (under eDiscovery Administrator) to add admin account. Click Close.
  7. After this, press Content Search – tap New Search
  8. Afterwards, provide the name, description, and location of the mailbox.
  9. Subsequently, hit Conditions to apply the required filters.
  10. Now, tap Submit -> click Done.
  11. When the process is done, press Actions -> Export Results.
  12. Later, move to the Export tab to track progress. Now, copy the Export key. 
  13. Lastly, paste Export key  -> Start. 

Method 2. Transfer Backup Exchange Online Mailbox to PST

  1. Link your Office 365 account to Outlook. 
  • Start Outlook – FileAdd Account.
  • After this, type your Office 365 email address and password. Hit Next. 
  • You will receive a confirmation message about Office 365 configuration. 
  1. Now, restart your Outlook application -> File -> Open & Export.
  2. Later, hit Import/Export and tap Export to a file -> Next.
  3. Further, choose the option: Outlook Data File (.pst) and pick a folder to export. Click Next.
  4. Afterwards, hit Finish once the process ends. 

#2 Automated Way to Export Exchange Online Mailbox to PST

MacSonik Office 365 Email Backup Tool is a reliable and useful tool that enables users to easily perform this process. With this software, you can export the entire mailbox into PST without any difficulty. Apart from this, users with no technical knowledge as it gives an easy-to-navigate interface. Additionally, it provides several extraordinary features, including duplicate remover, saving meaning without attachment, and more. Other than this, it allows users to backup Office 365 data into multiple file formats without data loss or any other issues. 

Simple Steps to Download PST from Exchange Online

  1. For this, start the Office 365 Backup Tool -> Backup -> Continue.
  2. Then, provide the Office 365 credentials in the required field to log in. Click Sign In.
  3. Now, pick the source user accounts and the mailbox that you want to migrate. Hit Next.
  4. Further, select or tick the folder for exporting -> click Next.
  5. Later, choose PST from the saving option and assign the path to save it on the PC. 
  6. Lastly, press the Convert tab and process will begin to export Exchnage Online Mailbox to PST to start the process. 

Final Thoughts

With this blog, your issues might be clearly related to the exporting process. You can use traditional and professional software for this. If we compare them, the manual method can lead to huge data loss. Also, it will take a lot of time to complete this process. Therefore, using an automated approach helps you end this process in no time. Moreover, data remains intact till the process finishes successfully.

Frequently Asked Questions

Q1. How to Export Exchange Online Mailbox to PST? 

For this process, follow the given steps s it provides the solution with MS Outlook. 
1. First, configure an Office 365 account in Outlook. 
2. Later, export Exchange Online Mailbox data into PST via the Import/Export feature. 

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