Microsoft will block MSIX and MSIXBundle attachments in Outlook and Exchange Online starting November 2026 to prevent malware distribution. Related Posts: RD Web Access Breaks as Chrome Drops XSLT Support Run Googlebook OS on MacBook via QEMU Virtualization Google AI Edge Foresight: A Free Offline Mac Tool The post Microsoft Blocks MSIX Attachments in Outlook appeared first on Daily CyberSecurity.