Written by Bharat Bhushan Published by Infosecurity Magazine Main Facts: Understanding the Role and Limitations of OST Files In the modern enterprise environment, Microsoft Outlook remains a cornerstone of corporate communication, seamlessly integrating email, calendars, contacts, and tasks. When configured via Microsoft 365, an Exchange Server, or an IMAP account with cached mode enabled, Outlook […]
Troubleshooting and Recovering Corrupted Outlook PST Files: A Comprehensive Technical Guide
Main Facts Dealing with Microsoft Outlook error messages such as "Outlook cannot open your data file" or facing sudden missing folders and unreadable emails usually points to a single primary culprit: a corrupted Personal Storage Table (.pst) file. Because PST files store a local copy of emails, calendar items, and attachments, file corruption can severely […]
Microsoft Tightens Outlook Security: .MSIX and .MSIXBUNDLE Files to be Blocked by Default
In an ongoing effort to harden its ecosystem against evolving cyber threats, Microsoft has announced a significant update to its security posture regarding email attachments. Starting in November 2025, Microsoft will formally add .msix and .msixbundle file types to the list of blocked attachments within Outlook on the Web and the new Outlook for Windows […]