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How to Migrate/Convert Outlook Mailboxes from OST File to Office 365?

Migrate OST to Office 365

If the user is searching for a reliable solution to import OST file to Office 365 of Microsoft then, here we will describe the recommended methods for migration. Microsoft Exchange supports OST (Offline Storage Table) files to save all the mailbox items. Users even work on the OST data in offline mode and the changes then made by the user will get saved automatically when internet connectivity is re-established. There are different reasons for different users for importing OST files to MS Office 365. Users’ cannot directly access their crucial OST data in Outlook 365 or Office 365. So users need to import OST files to O365 using the manual or professional automated techniques. In this blog, we are going to discuss the recommended manual and also one of the best OST to PST File Converter online that converts OST files to PST, MBOX, Office 365, Gmail, etc.

Let’s now understand why there is a need to import Outlook OST file to O365.

Reasons to Import OST File to Office 365

It offers several advantages for users to use the cloud-based Office 365 email service provider. Some of the common advantages are listed below.

●     Providing better security features as being a Microsoft’s product, O365 comes with the utmost level of security.

●     Provides great accessibility as the user can easily access emails anywhere under the internet connectivity.

●     Services such as SharePoint, Skype, MS Outlook, Hosted Exchange, are integral parts of O365.

●     Users just need to purchase a suitable plan according to their needs. It comes with the subscription plan, so no expenses on the setup.

Manual Technique to Import OST File to Office 365

There is no direct method to access OST data in the Office 365 program. However users can convert OST to PST first and then upload PST to Office 365. Follow the complete steps provided below.

Step 1: Convert OST to PST Format Outlook

  1. Open the Outlook program.
  2. Go to the File section.
  3. Click on Import and Export.
  4. Choose Export to a file option and then press Next.
  5. Select PST as the saving option and press Next button.
  6. Now select folders and emails to import and check on the include subfolder option.
  7. Browse the path to save the PST file.
  8. Click on the OK button to finish.

Step 2: Upload PST Files to Office 365

  1. Open MS Office 365 account.
  2. Go to Admin center < Exchange Admin Center < Permission < Organization management < +sign < Mailbox import export < ADD.
  3. Again select the mailbox import-export < Save.
  4. Now go to the Admin center < setup < Data Migration.
  5. Click on the Upload file.
  6. Now select New import Job < enter job name and click next.
  7. Select Show Network Upload SAS URL.
  8. Copy and paste the URL on Notepad.
  9. Install and run Azure AzCopy and type:

AzCopy.exe./Source:\Network Path or File Location /Dest: “SAS URL”/V: location path where you want to save log file/AzCopy.log/Y.

  1. Create a CSV file to map the uploaded PST file into a mailbox account.
  2. Check both options in the Import Data Window.
  3. Click on the Select Mapping File << Upload CSV File << Validate << Save.
  4. The PST file will be uploaded to the Office 365 mailbox.
  5. Click the Close button.

Note: Manual techniques to import OST file into Outlook 365 is complex and more time-consuming. There are several limitations and some risk of data loss due to human errors. So it is suggested by experts to either create a copy of the original file before starting the manual steps or to use any reliable OST to PST Converter professional utility.

Limitations

●     Lengthy and more time-consuming process.

●     Prior technical knowledge is required.

●     No advanced professional option is available to import.

●     Chances of data loss due to human error.

How to Import OST File to Office 365 Using Advanced OST File Converter?

As there are various limitations and risk of data loss using the manual strategies for migration. It is suggested by experts to opt for a trusted third-party solution to avoid all the limitations. The professional methods are risk-free and provide a quick and accurate conversion. DRS OST to PST Converter is able to convert OST to PST, MBOX, EML, MSG, PDF, HTML, TXT, DOC, Gmail, Yandex Mail, Yahoo, Office 365, etc. The software supports and exports the encrypted OST files as well. It easily exports all the mailbox items such as emails, tasks, contacts, calendar, etc. There are no file size restrictions and a preview option is available to view the recovered items prior saving. The free OST to PST Converter version allows users to convert 50 emails for free.

Conclusion

In this blog above, we have provided the perfect methods to import OST file to Office 365. At the end, we can conclude that manual techniques have several limitations and severe risk of data loss. So it is suggested to use the professional OST file converter to import OST to Outlook 2016 or other email clients or file formats.

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