I think this email also makes quite a brilliant use of responsive design. The colors are bright, and it's not too hard to scroll and click -- notice the CTAs are large enough for me to hit with my thumbs. Also, the mobile email actually has features that make sense for recipients who are on their mobile device. Check out the CTA at the bottom of the email, for example: The "Open Stitcher Radio" button prompts the app to open on your phone.

The terms ‘aim' and ‘objective' are often used interchangeably. However, they are not the same. Aims are an overarching end goal (and are usually specific). Objectives are steps along the road to that goal (and can be a bit more flexible). Aims are long-term outcomes, while objectives are short-term targets. Different objectives work towards different purposes. For example:
When it comes to deciding how to craft that perfect subject line, there appears to be really only one area to avoid: the subject line of 60 to 70 characters. Marketers refer to this as the “dead zone” of subject length. According to research by Adestra, which tracked over 900 million emails for its report, there is no increase in either open rate or clickthroughs at this 60-to-70 character length of subject line.