I've been using the service for quite sometime already and I just love the way it works. Gmail let's you impersonate another email address. Very simple to do. You go to email settings in the forwarding and pop link. Just type in the email address you want to impersonate, wait for the confirmation email to confirm account and your set. You then choose the email you want your emails to come from. It's a great solution for someone who want to use their job email address and personal email account via one email account.