Welcome email is the email letter that you send to welcome a new subscriber to your list.  Sometimes you will greet a new customer with a welcome email upon the purchase of your product or service.  Either way a welcome email tends to build a sort of relationship between you and the new subscriber or a new buyer.  

Welcome email is normally an automated email designed with the help of the automated power of a reliable small business email tool.  It builds trust and engagement between you and the customer.  Welcome emails have high open rates in the arena of email marketing industry.  That's because the interest of the subscriber is kindled via a welcome email.