Need to know about email button

[sunil maddheshi]

Hi Everyone,

I want to know where this email functionality is available in ServiceNow(Please see screenshot), I know that when we click on email it ask us to select a quick message and we select email client message based on that it populates the body. What i want to know where this email UI action or what it is and where i can see.(screenshot)

[Mark Manders]

It's an attribute on the table. 

Go to the dictionary of the table and you will see the email client attribute on there with a value of 'true'.