{"id":5228,"date":"2026-06-27T11:33:04","date_gmt":"2026-06-27T11:33:04","guid":{"rendered":"https:\/\/www.macsonik.com\/blog\/?p=5228"},"modified":"2026-06-30T09:10:39","modified_gmt":"2026-06-30T09:10:39","slug":"convert-pst-to-mbox","status":"publish","type":"post","link":"https:\/\/www.macsonik.com\/blog\/convert-pst-to-mbox\/","title":{"rendered":"Convert PST to MBOX on Mac – Bulk Outlook PST Conversion Guide"},"content":{"rendered":"\n\n
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User-Query:<\/strong><\/p>\n

User Query:<\/strong> “I have a large Microsoft Outlook PST file of around 22 GB. It contains more than 35,000 business emails, including attachments and mailbox folders. Now I want to convert this PST file into MBOX-supported email clients on my Mac. Since nearly 70% of this email data contains critical business records, I cannot afford any loss of data during the conversion. What is the easiest and safest way to convert PST to MBOX without losing data?”<\/p>\n

— Posted by “Michael Evans”<\/strong><\/p>\n<\/div>\n

Introduction:<\/strong> PST (Personal Storage Table) is the primary mailbox file format used by Microsoft Outlook. It stores emails, contacts, calendars, notes, and attachments. It is widely used for mailbox backups and archiving. However, PST files are mostly limited to Outlook environments. MBOX, on the other hand, is a widely supported mailbox file format used by several email clients. Converting PST to MBOX helps Mac users access Outlook mailbox data in multiple email platforms without compatibility issues. Therefore, this guide explains several ways to export PST to MBOX using the trusted MacSonik PST Converter Software<\/strong><\/a>. <\/p>\n

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