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

If You don't have permission to share your calendar with a user or group in Microsoft 365, follow the solutions mentioned ...

Microsoft is working to fix an Exchange Online service outage that intermittently prevents users from accessing their ...

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

Attackers exploit misconfigured email routing and weak spoof protections to send internal-looking phishing emails for ...