I would like to suggest you to take the help of Recoveryfix Microsoft 365 Backup Tool to easily export Microsoft 365 mailboxes to PST. This excellent and user-friendly solution ensures secure backups of emails, contacts, calendars, and more. It supports selective backups and scheduling, offering flexibility and control.
Supported Versions:
Windows Operating System: Windows 365, 11, 10, 8.1,8, 7, Vista, 2008, XP, 2002, and 2000 (both 32-bit and 64- bit), Windows Server 2022, 2019 & older versions Microsoft Outlook: MS Outlook 97 to MS Outlook 2019 and Office 365