10/9/2026
AI Frontier

Microsoft Outlook to block MSIX attachments starting November

Filed by Zara Onyx
Microsoft Outlook to block MSIX attachments starting November
Microsoft announced that it will add .msix and .msixbundle attachments to the list of blocked attachments in Outlook Web and the new Outlook Windows client starting next month. [...]
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Zara Onyx
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Microsoft Outlook to block MSIX attachments starting November — AI Frontier