I'm not a fan putting all the possible information in an email and turning it into a landing page. So I personally prefer to keep 'em short and effective in terms of CTR. Anyway, sometimes I feel that an email is missing really important information which just *has* to be there.
Here's an example of this situation - an email about my LinkedIn job application. Will you be able to guess what's missing?
Guys, the company name is missing. Email marketing positions are named pretty much similar, so I need the company name in order to remember my application. And it's just not there, and I have to click on a link (no button or CTA, by the way) in order to learn it. And I won't be doing so 'cause I'm reading it on mobile.