Signing and Encrypting Emails in Microsoft Outlook

This article explains how to digitally sign and encrypt emails in Microsoft Outlook using S/MIME certificates.

Prerequisites

• Valid S/MIME certificate installed
• Microsoft Outlook configured
• Recipient's public key for encryption

Digital Signing

1. Compose Email: Create a new email message
2. Sign Options: Click on signing options in the ribbon
3. Send Signed: The email will be digitally signed

Email Encryption

1. Encryption Options: Select encryption in email options
2. Recipient Certificate: Ensure recipient's certificate is available
3. Send Encrypted: Email will be encrypted for secure transmission

Verification

• Signed emails show signature status
• Encrypted emails require private key to decrypt