

Download the Azure AzCopy from the same dialog box in the system that will be used for transferring the emails.

Login with admin credentials into the Microsoft 365 Admin Center and navigate to Security & Compliance Center>Data Governance>Import.Follow the steps below to import the files into Microsoft 365. This must be done by a user with global admin rights with Mailbox Import Export role using the Azure AzCopy tool. The emails are imported into Microsoft 365/Office 365 using the network upload method. Importing Emails from Outlook to Office 365 Drag and drop files stored locally into Outlook.Create a new folder in Outlook to import these emails.Select the mails in a specific folder in the desired mailbox to be migrated and save them in the EML/ PST format.
GMAIL MBOX TO OUTLOOK INSTALL
Install Outlook on the machine used for accessing the MBOX files.The steps to migrate MBOX files to Outlook is similar to Mozilla Thunderbird to Office 365 migration. Consequently, not all email clients support the conversion of MBOX to PST files. Microsoft does not provide a native method to import MBOX files into Office 365.

GMAIL MBOX TO OUTLOOK MANUAL
What Is the Manual Method to Import MBOX Files into Office 365? In this article, we will delve into the process involved in importing MBOX files into Office 365. This format is not compatible with Outlook, the email client that is used with Exchange Online in Office 365/ Microsoft 365. Many of the on-premises email clients use the MBOX file format for emails and archives. These cloud services provide access to data from anywhere, provide updates automatically, reduce security risks, offer greater scalability, and minimize the chance of data loss. With the rise in the use of cloud solutions, businesses and end-users are migrating away from on-premises servers and email clients.
