Microsoft has confirmed a known issue that prevents recipients from opening encrypted emails in classic Outlook.

While sending an email through the Outlook desktop app, if you see an error message saying Microsoft Outlook cannot sign or encrypt this message because there are no ...

The problem happens for users who encrypt the email using the settings under the email File dialog (File > Encrypt), ...

A new Microsoft-issued software patch for Outlook (Classic) on Windows 11 inadvertently broke encrypted email support - ...

A new Outlook (Classic) update is preventing Windows users from opening encrypted emails. Microsoft confirms the bug and ...

If the Outlook error message The email system had a problem processing this message, It won’t try to deliver this message again keeps troubling you, this post may ...