To export an Office 365 mailbox to a PST file, you can use native Microsoft methods such as the Microsoft Purview Compliance Portal (eDiscovery) for administrators or Classic Desktop Outlook for individual users. While “Mailsouls” refers generically to specialized mailbox conversion tools, the reliable, industry-standard steps to safely extract your PST files directly via Microsoft’s built-in frameworks are detailed below.
🛠️ Method 1: Exporting via Microsoft Purview (Admin eDiscovery)
This method is ideal for IT administrators who need to export one or multiple mailboxes from the cloud backend without configuring them in a local application. Step 1: Assign eDiscovery Permissions
Log in to your Microsoft 365 Admin Center as a Global Administrator.
Navigate to Roles > Role groups or launch the Microsoft Purview Portal. Select eDiscovery Manager from the roles list.
Click Edit and ensure your account is explicitly added as an eDiscovery Administrator. (Note: Global Admins do not get this right automatically). Step 2: Create a Content Search
In Microsoft Purview, go to Solutions > eDiscovery > Content search.
Click New search, then enter a clear name and description for the task. Under Locations, toggle Exchange mailboxes to On.
Click Choose users, groups, or teams and search for the mailbox you intend to download.
Leave the Conditions tab blank to capture everything, or add specific date parameters if required. Click Submit to run the query. Step 3: Trigger the PST Export
Once the search status changes to completed, open it and click the Actions button. Select Export results.
Under output options, check All items and select One PST file for each mailbox. Click Export. Step 4: Download via eDiscovery Export Tool How do I export a Microsoft365 mailbox to a PST
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