You can also use S/MIME encryption (Secure/Multipurpose internet Mail Extensions), a widely accepted protocol for sending digitally signed and encrypted messages. To use S/MIME …

Outlook provides various encryption options to help keep your messages secure. To learn more about encryption in Outlook, select a link under the version of Outlook you're using. What …

How do I send an encrypted email message? To send a message with encryption, compose a new message, select the Options ribbon, and then select Encrypt. You can choose Encrypt or …

Send encrypted email messages in Outlook. Secure messages by using a digital signature. Get a digital ID. Find digital ID or digital ID services. Send a digitally signed or encrypted message …

Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by …

Send an encrypted message using S/MIME in Outlook for Mac. Before you start this procedure, you must first have added a certificate to the keychain on your computer. For information …

As part of our message protection efforts, Microsoft has evolved our email encryption solutions to provide a unified sender experience whether you're sending a protected message inside of …

A digital signature attached to an email message offers another layer of security by providing assurance to the recipient that you—not an imposter—signed the contents of the email …

Want to add a padlock to your email messages? You can use S/MIME in Outlook Web App to increase the security of messages. A digitally encrypted message can only be opened by …

A digital ID enables you to send digitally signed messages using Microsoft Outlook. A digital ID—also known as a digital certificate—helps prove your identity and helps prevent message …