When you send an email to a member, lead, or contact from the Activity Feed, you can include your email signature by using the [Internal User Email Signature] token. This article discusses creating your email signature. For more information about sending an email to a member, lead, or contact, see Sending an email from the Activity Feed.
To choose your default email template
Select your Personal Profile in the top menu and select My Profile from the drop-down menu.
In the Email Signature field, enter your email signature as you would like it to appear.
Click Save.