Here are the steps to export your emails from the old account using the New Outlook: Open the New Outlook and go to the Settings (gear icon) in the upper right corner.
If the Import/Export option isn’t available in Outlook 365, it usually means you’re using Outlook on the web or your admin has turned off that feature. Here are some ways you can still export your emails to your hard drive: If you have the Outlook desktop app, the easiest way is to use the built-in export tool.
How to export emails in outlook 365 to hard drive - Microsoft Q&A
how to export your Outlook emails/contacts to a PST file and store them ...
Summary: Learn how administrators can view, create, modify, delete, suspend and resume requests to export mailboxes to .pst files in Exchange Server 2016 or Exchange Server 2019.
Learn how to export data from Power BI report visualizations and dashboard tiles to Excel. Discover options for summarized and underlying data exports.
Use the Export-ActivityExplorerData cmdlet to export activities from Data classification > Activity Explorer in the Microsoft 365 Purview compliance portal. Activity explorer reports on up to 30 days worth of data. For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.
This cmdlet is available only in on-premises Exchange. Use the New-MailboxExportRequest cmdlet to begin the process of exporting contents of a primary mailbox or archive to a .pst file. This cmdlet is available only in the Mailbox Import Export role, and by default, the role isn't assigned to any role groups. To use this cmdlet, you need to add the Mailbox Import Export role to a role group ...