Sending an email can have a few different responsibilities: Who is the email being sent to? What is the content of the email? What data does the email conten

Sending an email can have a few different responsibilities: Who is the email being sent to? What is the content of the email? What data does the email content and recipient depend on? What are you tracking on the email? How is the email visually formatted? All those things might be in different apps as the logic gets more complicated.