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

Encrypted emails in Microsoft’s older email client—called “classic Outlook” as opposed to “new Outlook”—have once again ...

Microsoft is looking into a newly identified issue in classic Outlook that prevents users from opening certain encrypted ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. As regular readers of the cybersecurity section here at Forbes ...

This problem often occurs when your local Outlook client uses outdated cached policy data rather than obtaining the latest encryption or labeling settings from Microsoft 365. Outlook has multiple ...