Send your layered PSD, AI & EPS files to Email Monks and let them design, hand-code and test your responsive email template. Although the spelling mistakes on their landing page might put you off, Email Monks have received many positive reviews from a wide variety of sources. They have a responsive post-production support team and there’s even an 8 hour turnaround option. Email Monks have also created a range of paid addons to make your emails much more interesting to both you and your client. One of the cheapest and larger coding services on the web.