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Export Office 365 Mailboxes to PST using eDiscovery – Tutorial

Admin | Modified: 2019-09-16T12:38:10+05:30 | 5 Minutes Reading
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Nowadays, there are multiple email client available and users have several choices for selecting email client which suits them. Outlook and Office 365 are one of those two trending email clients. Both are brand of Microsoft but due to some reasons, users search for a method to Export Office 365 Mailbox to PST. As Microsoft doesn’t provide any dedicated option to Export Office 365 Online Mailbox for its users. So, we have decided to help them by finding a suitable method to solve their problem. There are the top 2 solutions we have found. In this tutorial, we are going to explain how to export Office 365 mailboxes to PST using the eDiscovery tool & an Alternative method.

Both the method are easy to perform and have some advantage and disadvantages. eDiscovery PST export tool has many technical limitations such as only export emails (not calendar, contacts), not working, not starting error occurs. But this tool works fine with small size Office 365 mailboxes and export PST file which easily open with Outlook 2016 version. The alternative solution to export Office 365 Online Mailbox to PST also described in this article named Office 365 Export Tool. Let’s start with eDiscovery PST Export Tool.

Export Office 365 Mailboxes to PST using eDiscovery

Complete Guide to Export Office 365 Mailboxes to PST using eDiscovery

Microsoft eDiscovery Export Tool in Exchange Admin Center (EAC) helps to export the In-Place eDiscovery search to Outlook PST file. Here are the step by step guide through an Admin and user can export Office 365 mailbox to PST format

Step 1: Log-in to Microsoft Exchange Admin Center by Office 365 Credentials

Step 2: Go to Permissions >> Admin Roles >> Discovery Management >> Mailbox Import Export Role


Step 3: Click on Save button to export Office 365 Online mailbox to PST format


Step 4: Go to Compliance Management >> In-Place eDiscovery & Hold and click on the New (+) icon


Step 5: From the ‘In-Place eDiscovery & Hold’ dialogue box, input the Name and description and click on Next


Step 6: Specify the criterion for all Ofice 365 mailboxes or choose the ones by adding the ‘+’ button. This help to export O365 mailbox to PST file format


Step 7: From the ‘Search query’ screen, set the required filters and click on Next


Step 8: From the ‘In-Place Hold Settings’ dialogue box, provide the number of days for which the items are to be kept before they are deleted from the Microsoft server. Then, click on Finish button


Step 9: Then, click the Close button when the confirmation message appears

Step 10: All the generated search gets listed. After the completion of the process, click Preview search results. Then, click on download arrow to export PST files directly to local drive


Step 11: Then, click on Run (when security warning appears) to process further


Step 12: From the ‘eDiscovery PST Export Tool’, set the destination location where the resultant Outlook PST file will be stored. Then, click on Start to export Office 365 mailbox to PST


Step 13: Next, enter the Office 365 credentials and click on OK button


Step 14: Next, click on the Close button to complete the O365 mailbox export process


Step 15: Finally, use Microsoft Outlook to open the resultant PST file in any of the existing profile or versions.

These are the complete step by step process to export Office 365 mailboxes to PST using eDiscovery tool. But, it is a time taking process as well as burdern for the admin or user to perform all the steps while using the eDiscovery PST Export Tool

Limitations of Using eDiscovery Tool to Export Office 365 Mailbox

  • The manual solution to export office 365 mailbox to PST is a time-consuming and lengthy approach.
  • Cannot export all mailbox data like calendar, contacts & emails simultaneously
  • No option to Apply filter option during the export process.
  • To export O365 mailbox to PST, it requires technical expertise. Thus, not suitable for non-technical users.

Author’s Suggestion – Use Automated Solution to Export O365 Mailbox to PST

For quick and secure Office 365 export process, we suggest to use a reliable third-party solution named as Office 365 Exporter Tool. It is a fully developed software built by the latest technologies with various features. Have a look at the tool features which helps an admin or user to choose a better solution to export Office 365 mailbox to PST.

  • Export Office 365 Online Mailboxes to Outlook PST, MSG and EML Format
  • Extract Office 365 Components such as Emails, Contacts, Calendars, Tasks
  • Export Office 365 Archive Mailboxes or In-Place Archive Mails into PST
  • Tool Provides Select Categories and Data Filter Option for Better Result
  • Software Provides Pause & Resume Option if Need to Stop Process Anytime

This software easily export Microsoft Office 365 mailboxes items into Outlook data files in few steps. Lets have a look on tool step by step working.

Export Office 365 Mailboxes to PST using eDiscovery Alternative Tool

Here is the step by step process of the software to export Office 365 mailbox to Outlook PST format:

Step 1: Download, Install and Open Tool. Login with Office 365 Credentials


Step 2: Check All Domains or Selected Domains as per Your Requirement, Then Click on Next


Step 3: Select Email Format: PST, MSG, EML, and Select Categories: Mails, Calendars, Tasks, Contacts, Archive Mailbox. Select Destination Path and click on the Start button


Step 4: Then, all the Office 365 Mailboxes Exported into PST Format. Save Report after Process Completion and Use Resultant PST File in any Outlook Version


Note: Simple and easy process to Export Office 365 mailboxes to PST using eDiscovery or by alternative tool are explained above. Choose the option which suits you.


After reading this article, we are sure an admin or user has decided which process is much easier and best for them. Both scenarios have own benefit like export Office 365 mailboxes to PST using eDiscovery tool is a free solution by Microsoft. But has some limitations like only export emails and user getting many error like not start or not working. Office 365 Export utility is providing multiple features with various filters so best for an enterprise. Choose wisely a solution to export O365 mailbox to PST format.