If you have more than one email account configured in Mail for Windows, create separate signatures for each account or use the same signature for all of your accounts.
Step 1: Launch Mail for Windows.
Step 2: Click Settings (the gear icon) at the bottom of the navigation pane on the left side of the screen.
Step 3: In the Settings pane on the left, click Signature.
Step 4: Switch on usage an email signature switch on.
Step 5: In Windows Mail, select the Apply to all accounts checkbox to apply the same signature to all of your email accounts. If you only want to add a signature to emails sent from one specific email account, select the Select an account and customize your signature dropdown arrow and select the account you want to change. Set Up Email Signatures in Mail for Windows 10.
Step 6: In the text box, type your email signature. The text that appears by default is "Sent from Mail for Windows 10." To change it, overwrite this text.
Step 7: Save your work. When you create a new email in Mail for Windows, your signature appears at the bottom of the message automatically.
Initially, Message for Windows 10 only supported clear text signatures. Without a workaround, it is now possible to use different fonts and add images to signatures. To add links, images, and formatted text to your signature, use the toolbar located above the text field. Emojis can also be used.
Keep your email signature as simple as possible. A suitable signature includes the following elements: