Best Solutions to Import OST into Office 365 on Mac

Summary: Are you looking for a solution to import OST into Office 365 Account? Then there is no need to worry anymore. Here, we have introduced a third-party Mac Office 365 Backup Tool, which provides the easiest and the most direct solution to overcome this task. Alternatively, we have explained the manual approach. For both of these methods, we have explained proper stepwise instructions in detail.

Let’s start this blog by looking at the reasons why users prefer to import OST files into Office 365.

Why do Users Prefer to Migrate OST File to Office 365

Mentioned below are some of the common reasons why users prefer to transfer the OST files to an Office 365/ Outlook 365 account.

1. Office 365 possesses security features like two-factor authentication, which helps to keep the data safe and secure.
2. It offers the ability to share data in a seamless way.
3. All Microsoft applications are included in a single place, which is easily accessible.
4. In the case of Office 365, it helps to sync all your emails, calendars, and contacts.

Overall, there are many other reasons apart from these, but these are some of the important ones. In the next section, let’s discuss some of the solutions available to import OST into Office 365.

Manual Technique to Import Outlook OST to Office 365 Account

Manually, there is no direct method available to perform OST migration to Office 365. So, we have discussed the manual method in two stages: firstly, transfer OST files to PST and then move the exported PST to the O365 Outlook.com account.

Let’s proceed further and discuss detailed instructions for both stages.

Stage 01: Export OST Files to PST

Manual Procedure helps change OST file data to PST.

Export Feature of MS Outlook

Follow the instructions below to convert OST file to PST:-

1. Install and run the MS Outlook email app in the operating system. Make sure that it is connected to the Exchange Server.
2. Tap File, choose the Export to a File option, and click Next.
3. Choose Personal File Folder (.pst) and hit Next.
4. Select the desired folder to export, and choose the option to include subfolders if required.
5. Now, browse the location as per need where you want to save the exported file and hit Finish.

Archive Feature of MS Outlook

So follow the instructions to convert the OST data file to PST:

1. Run an Outlook email app, Tap File, and choose Archive.
2. Another window will appear; select the desired file/folder to archive.
3. Pick the desired destination path for the archive .pst file.
4. The process will begin shortly once you click the OK button.

Note: The above process will transfer all Outlook folders except Outlook contacts.

Outlook Items transfer to New PST

This method helps export the OST file to the new PST. Follow the Guidelines below:

1. Run the MS Outlook email app.
2. Create a new PST folder.
3. Choose the required mailbox folders to export into the PST file.

Note: Above mentioned solution does not allow to drag and drop the OST folder items to PST i.e. inbox, contacts, sent, calendar, etc. So, users just need to copy the OST folder to PST.

Stage 02: Upload Exported PST to O365

As soon as the conversion is completed from the OST file to PST, the next procedure you need to follow is to import exported PST files to Exchange Online.

There are two different procedures that we can use to easily import a PST file to Office 365. These are:-

• Drive Shipping Method
• Network Upload

Drive Shipping Method

It is a process of migrating data to OneDrive data for Business. Firstly, you need to copy data from PST files to the hard drive. Then, the disk drive will be physically shipped to the Microsoft data center.

Network Upload Method

In this process, users need to move or copy the PST(Personal Storage Table) file into MS Exchange Online without wasting time. Then follow the stages to execute the process:

1. Install the Azure AzCopy Tool by copying the SAS URL.
2. Transfer Files to MS Exchange Online Mailbox.
3. View Outlook data files list (.pst) uploaded or saved to Office 365.
4. Generate PST Import Mapping File.
5. Next, in Exchange Online Mailboxes, make a Personal Storage Table (PST).

Note: This complete manual procedure can be implemented, but it poses some limitations. Let’s discuss these limitations in points further:-

1. The manual method is quite a lengthy process overall, and it is time-consuming.
2. This method also demands basic technical skills in order to implement this method.
3. In this complete process, if a single step is missed, it could result in file corruption.

However, there are many other pitfalls apart from these. Let’s proceed further and discuss an alternative approach using third-party Mac Office 365 Backup Software to overcome this task.

Professional and Reliable Solution to Import OST into Office 365

Mac Office 365 Backup Tool is a secure and reliable Office 365 backup utility that permits users to take the backup of Office 365 mailboxes into several file formats. Also, it can backup Office 365 Emails on Mac local device or PC as well. Additionally, this software can even restore PST/OST files in mailboxes in the Office 365 account.

Let’s move forward and look at the guidelines for this tool in more detail.

Follow the Guidelines below for OST to Office 365 Migration

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1. Download, launch, and run the Mac Office 365 Backup Tool on your device and select the Restore option.
2. The tool will display 5 steps to follow. Click Continue to move forward.
3. Choose OST and select the Single File option. Hit the Select File button to browse the OST file. Click the Open and Next button to proceed. After choosing the file, tap Next.
4. Further, two options are provided to log in to your Office 365 account. Select Use Modern Authentication, enter your Office 365 ID, and hit the Sign in button. Also, to backup multiple mailboxes, then check the Assign Impersonation option.
5. As soon as the authentication is complete, select the additional features as per the need. Click Next to move forward. Tick the mailbox and click Next.
6. Map your Office 365 ID data to migrate it into Mailbox, Public Folder, and Online Archive, and lastly, to initiate the process, hit on the Convert button.

Conclusion

In this complete blog post, we have provided a brief discussion of all the information on how to import OST into Office 365 account on MacOS. We have elaborated on both manual and professional in order to achieve better outcomes. Moreover, we suggest users go for the expert’s suggested method by using Third-party Mac Office 365 Backup Software, which allows users to move a large amount of OST mailbox data at once without imposing any size restrictions. Additionally, a free demo version of this utility is also available online. Using this, users can easily back up 50 items per folder and can also check the efficiency of this tool.