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 ...

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

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

The error you’re experiencing seems to stem from a combination of factors, such as connection encryption, potential Outlook profile issues, or conflicting third ...