Classic Outlook tells you to open the email to "read its contents and verify your credentials," but that doesn't work.
The problem happens for users who encrypt the email using the settings under the email File dialog (File > Encrypt), ...
A new Outlook (Classic) update is preventing Windows users from opening encrypted emails. Microsoft confirms the bug and ...
A new Microsoft-issued software patch for Outlook (Classic) on Windows 11 inadvertently broke encrypted email support - ...
Microsoft has confirmed a known issue that prevents recipients from opening encrypted emails in classic Outlook.
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