Export Windows Live Mail EML to PST/Office 365
Step 1: Open Windows Live Mail. Click File > Export Email, and then select Email Messages.
Step 2: Choose Microsoft Exchange Server Versions
from the Select Program list and click Next.
Step 3: A new message window will appear on screen for confirming the exportation of messages. Click on OK to proceed.
Step 4: Select the folders files and folders you want to export from Windows Live Mail to MS Outlook and click OK.
Step 5: A window will appear on screen showing the progress of the EML to PST conversion process.
Step 6: An EML to PST conversion process completion message will appear on screen; click the Finish button.
Step 7: Login into the Office 365 business
Step 8: In the Import page (of Data governance), create new job to upload data to Office 365 Azure storage location.
Step 9: Now, copy and save the network upload SAS URL.
Step 10: Download and install Azure AzCopy tool and run it.
Step 11: Use the command prompt to upload the PST files (from a shared location) to Office 365 using the AzCopy.exe tool (optionally, you can view the PST files using Microsoft Azure Storage Explorer).
Step 12: Create a CSV file having the details of mailboxes (in the Microsoft recommended format).
Step 13: Create a PST import job (validating the CSV file that has been created).
Step 14: Finally, import PST files to Office 365 (filter the PST file data if required).