vMail PST to MBOX Converter software efficiently converts Outlook PST files into MBOX format with complete emails, attachments, and metadata, ensuring smooth migration for Thunderbird, Apple Mail, and other MBOX-supported clients. vMail PST to MBOX Converter software helps you securely back up Office 365 mailboxes, including emails, contacts, calendars, special archives, and shared folders, ensuring complete data protection, easy recovery, and reliable storage management for businesses.

More info- https://appsource.microsoft.com/en-us/product/saas/vartikasoftwareprivatelimited1702907737065.vmail-office-365-email-migration-tool?tab=Overview