Dealing with the issue of an Office 365 Shared Mailbox not showing in Outlook can be frustrating, but the MailConverterTools Office 365 Backup Tool offers an advanced and efficient solution. Its clean and intuitive interface makes it accessible for all users, allowing smooth export of Office 365 mailbox data into formats like PST, EML, MSG, MBOX, HTML, EMLX, OST, and CSV. The tool also supports secure migration to Office 365, G Suite, and IMAP-enabled platforms, along with a Smart Date Filter to back up specific emails within a defined period. It functions as a complete backup and restore utility, enabling the restoration of multiple PST or OST files into Office 365 accounts with ease. Furthermore, users can save emails, contacts, calendars, tasks, and journals locally, while the Remove Duplicate feature ensures accurate and clutter-free results. Compatible with both Windows and macOS, it also includes a demo version and 24/7 technical support for seamless usage.