This article explains how to convert OST (Outlook offline storage) files to PST format using three methods: Outlook's archive feature, drag-and-drop, and third-party software like PDS OST to PST Converter. OST files store mailbox data for offline access to Exchange servers, and conversion to PST is necessary when OST files become inaccessible to recover lost data.
Inbox Zero, typically a productivity concept, can be repurposed as a privacy practice by locally archiving emails instead of storing them indefinitely on remote servers. The article argues that email inboxes contain highly sensitive personal data—passwords, addresses, medical records—that represent a catastrophic breach risk when stored on untrusted third-party servers, and advocates moving processed emails to encrypted local storage rather than server folders.