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How did you import the pst file to the o365 mailbox?
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How did you import the pst file to the o365 mailbox?

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Using Outlook I exported his old POP3 email to a .PST.<br />
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On his new computer I opened Outlook, configured the connection to O365 to his new Mailbox. I then imported the .PST from the other machine.
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Using Outlook I exported his old POP3 email to a .PST.

On his new computer I opened Outlook, configured the connection to O365 to his new Mailbox. I then imported the .PST from the other machine.

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Can you just connect the pst to the outlook client connected to the O365 mail. So open the outlook client with the O365 mailbox and mount the pst to that outlook client and then drag and drop the PST connect and see if that works.
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Can you just connect the pst to the outlook client connected to the O365 mail. So open the outlook client with the O365 mailbox and mount the pst to that outlook client and then drag and drop the PST connect and see if that works.

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I would have to drag the contents of hundreds of folders from the attached PST to the new O365 Mailbox. Outlook doesn't support dragging folders that way. Only Items inside the folders.
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I would have to drag the contents of hundreds of folders from the attached PST to the new O365 Mailbox. Outlook doesn't support dragging folders that way. Only Items inside the folders.

John Caspary

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I've upgraded a friend's email from using a POP3 server to Office 365 Business with Exchange. He uses Outlook as his only client. I exported all his old emails to a PST and then imported them into the new O365 mailbox. There are many folders that appear empty. He has 100s of folders and sub folders. I've tried this twice.<br />
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Could you suggest a better way to meet my goal?
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I've upgraded a friend's email from using a POP3 server to Office 365 Business with Exchange. He uses Outlook as his only client. I exported all his old emails to a PST and then imported them into the new O365 mailbox. There are many folders that appear empty. He has 100s of folders and sub folders. I've tried this twice.

Could you suggest a better way to meet my goal?

Migrating a PST into a new Office 365 Exchange Mailbox

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.

Microsoft Office

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.