MacSonik Hotmail backup tool for mac It is difficult to backup Outlook emails on a Mac. As a result, you should consider using the MacSonik Outlook Backup Tool, which is specifically designed to backup all Outlook emails. It is capable of backing up and converting Outlook Hotmail emails to PDF, PST, MBOX, HTML, and a variety of other file formats. You can, on the other hand, easily export Outlook to Gmail, Yahoo, Office 365, Thunderbird, Zoho, and other email clients.