Send S/MIME or Microsoft Purview encrypted emails in Outlook
Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.
Learn about securing and protecting email messages in Outlook
Learn how to use encryption and other security settings to protect messages sent from Outlook.
Send encrypted messages with a Microsoft 365 personal or family ...
If you have a Microsoft 365 Family or Microsoft 365 Personal subscription, Outlook includes encryption features that let you share your confidential and personal information while …
Set up Outlook to use S/MIME encryption - Microsoft Support
Instructions to set up Outlook for encryption and digital signatures To set up Outlook for encryption and digital signatures, choose instructions based on the version of Outlook you're …
Open encrypted and protected messages - Microsoft Support
Learn how to identify and open encrypted and protected emails no matter what email client you're using.
Send a digitally signed or encrypted message for Mac
Learn how to use digital signatures and encryption in Outlook for Mac. Both the sender and recipient must have a mail application that supports the S/MIME standard.
Classic Outlook recipients are unable to open "Encrypt Only" emails
Jan 6, 2026 · To prevent the issue, select the Options ribbon, then select Encrypt, and choose Encrypt or Do Not Forward as noted in this article, Send encrypted messages with a Microsoft …
Secure messages with a digital ID in Outlook - Microsoft Support
Under Microsoft Outlook Trust Center, select Trust Center Settings. On the Email Security tab, under Encrypted Mail, select the Add digital signature to outgoing messages check box.
Recall an Outlook email message - Microsoft Support
How to recall and/or replace an email message you sent by using Microsoft 365 and your built-in Exchange Server account.
Error replying to encrypted emails from Outlook Desktop
Jun 21, 2024 · When you reply to an OMEv2 encrypted email from Outlook Desktop, you may get the following error message: “Microsoft Outlook was not able to create a message with …