Secure messages with a digital ID in Outlook - Microsoft Support
Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.
Obtain a digital certificate and create a digital signature
If you do not want to purchase a digital certificate from a third-party certificate authority (CA), or if you want to digitally sign your document immediately, you can create your own digital certificate.
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.
Digital signatures and certificates - Microsoft Support
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the …
Create and add an email signature in Outlook - Microsoft Support
How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.
Secure messages with a digital ID in Outlook - Microsoft Support
Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.
Set up Outlook to use S/MIME encryption - Microsoft Support
If you want to insert a digital signature into an email, you need to install a digital ID (certificate), which is verified by a third party. Before you can send and receive messages with encryption …
Introduction to digital signatures - Microsoft Support
You can use a digital signature for many of the same reasons that you might sign a paper document. A digital signature is used to authenticate digital information — such as form …
Add or remove a digital signature for Microsoft 365 files
Learn about digital signatures, digital IDs, and signature lines to use in Word, Excel, and PowerPoint.
Insert a signature in a Word document - Microsoft Support
You can scan your signature and store it as a picture to insert in the document. You can also insert a signature line to indicate where a signature should be written.