Step by Step Guide to Import OST File into Office 365

In this blog, we are going to initiate ways to Import OST File into Office 365. Relocating to Office 365 from on-premises Exchange requires appropriate managing. The process of moving mailbox items depends on the no. of emails in a mailbox. 

If an issue emerges when the Exchange Administrator needs to move mailbox items encrypted in OST files; data that is not connected with the exchange server is orphaned and is not saved anywhere. Such OST files cannot be migrated as they are not associated with Exchange Online – except if there’s a method available to export OST file to PST, Office 365, or other platforms.

Let’s take a look at the below-mentioned reasons why such migration is required.

Reasons to Migrate OST file to Office 365:

Migrate OST file to Office 365

If someone wants to convert OST to MSG then it can be possible if you are a novice user also.

How to Import OST file in Outlook Office 365 Portably?

Following are the methods to  Import OST File into Office 365.

Method 1: Convert OST file into Outlook PST and  then load it to Office 365

Step 1: Convert Outlook OST to PST format
  1. Launch the Outlook account profile.
  2. Redirect to the “File” menu and go to the “Import and Export
  3. Choose the alternative: ”Export to a file” and hit “Next” to proceed.
  4. Opt PST option and press “Next.”
  5. Choose the emails or folders, then tick the checkbox next to “Include Subfolders”. Tap “Next”.
  6. Navigate a location to save the resultant PST file using ”Browse” button.
  7. Check the checkbox beside “Replace duplicate with items imported” and tap the Next button.
  8. Set a password to encrypt PST file, if necessary.
  9. Tap the “Ok” button to migrate the PST file. 
Step 2: Import PST file to Office 365 Mailbox
  1. Sign in to your Office 365 account and redirect to the Admin Center of Exchange Server.
  2. Exchange Admin Center (EMC) window will display on your screen. Redirect to the Permissions tab and double-click the ”Organization Management” option.
    a) A new popup window will display on your screen. Click the “+ sign” and choose the mailbox Import/Export option.
    b) Hit the Add button and click Ok.
  3. Next, go to  Mailbox import-export tab and then opt the Save option.
  4. Redirect to the Admin Center and pick the Setup -> Data Migration. Now, hit on the Upload file option.
  5. Choose the New Import file and give it a name. Hit the Next button to proceed.
  6. Tick the checkbox Upload Your Date and hit Next.
  7. In the following window, tap the Show Network Upload SAS URL option.
  8. Replicate that URL & affix on the notepad.
  9. Download and install Azure AzCopy. 

Note: Offer necessary folder or file consents to migrate the PST file into O365 format. Also, an individual can replicate files or folders directly to PST format, available on Network Path.

  1. Launch the Microsoft Azure AzCopy tool and enter the following: AzCopy.exe /Source: \Network Path or File location /Dest:” SAS URL”/V: location path where you wish to store logfile /AzCopy.log /Y
  2. Tap the Enter key.
  3. After the PST file is generated, create a CSV file to map PST file into a mailbox account.
  4. In the import data window, and examine both options and hit the Next button.
  5. Go to the Mapping file tab -> Upload CSV file -> Validate -> Save.
  6. The resultant Outlook PST is now successfully loaded into Office 365. Tap the Close button to exit.

Method 2: Convert OST files into  Outlook PST format and Drive Ship PST files to Office 365

Step 1: Convert  Outlook OST to PST format
  1. Launch the Outlook account profile.
  2.  Redirect to the “File” menu and go to the “Import and Export.”
  3. Choose the alternative: ‘‘Export to a file” and hit “Next” to proceed.
  4. Opt PST option and press “Next.”
  5. Choose the emails or folders, then tick the checkbox next to “Include Subfolders”. Tap “Next”.
  6. Navigate a location to save the resultant PST file using the ”Browse” button.
  7. Check the checkbox beside “Replace duplicate with items imported” and tap the Next button.
  8. Set a password to encrypt the PST file, if necessary.
  9. Tap the “Ok” button to migrate the PST file.
Step 2: Utilize Drive shipping to export Outlook PST Files into O365

Via“Drive Shipping to Microsoft”, users load their  Outlook PST into the system hard drive and export the drive to Microsoft. Microsoft then replicates and loads the PST file from a hard disk to O365. If the above methods are messy and create difficulty for the users to migrate an OST file to O365, then users can utilize a professional utility helpful for migrating OST mailbox items to different mail clients. One such expertise is Cigati OST Converter. Here are some additional features of the utility that users might consider helpful.

Prominent Features:

  • Keeps data intact during the migration of an offline OST file.
  •  The advanced search option allows users to look for the OST files from the system.
  •  Allows Previewing the OST files mailbox folder, before saving them to a new folder.
  •  Deliberates users to migrate OST mailbox items into Windows Live Mail (EML).
  • Lets users export normal as well as damaged OST files into PST format.
  •  Converts OST Files into Mac Mail (MBOX) with great ease.
  •  Generates a LOG file of the entire conversion process of an OST file.

Conclusion

The above blog states the helpful techniques one might require to import OST file into Office 365. It is indeed heard that the manual techniques are tedious and messy, when it comes to following the procedure, for the desired Outcome. We have also reinstated the professional technique if the manual method doesn’t work. I hope you find this blog profounding.

About: Nisha Yadav