Open Outlook
Click File
Click Options
Click Mail
Click Signatures…
Select the email account under Select signature to edit
Choose New
Enter a name for the signature
In Edit signature, type your signature content
Use the formatting options to style text, add links, and include images if needed
To set automatic insertion, under Choose default signature, select the signature for New messages and Replies/forwards
To use the signature manually, open a new email (or reply/forward) and click Signature, then select the signature
Click Save
Click OK