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 ...
Microsoft has confirmed a known issue that prevents recipients from opening encrypted emails in classic Outlook.
If you open MS Outlook and see an error message, Outlook is using an old copy of your Outlook data file (.ost), then use ...
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