NFL
I was the template master for the National Football League weekly emails. They sent two a week during the football season. Everything was automated so every photo, title, article and ad section was swapped out with new content.
I know this sounds ridiculous, but nobody I worked with could figure out how to subscribe to the newsletter. So the only example I have is the template. The CSS was huge, because it had to work withe very email client. The following year the company lost the contract.
Tools used include Dreamweaver, Photoshop, Atom, BBEdit, Litmus and WordPress.