Pretty much the entirety of the email is in Yoda speak ('Miss you we do. Yes, hmmm', 'Sensed a weakness in the force since you left, we have. Rejoin us you must and 2 months for 1 will you get.') and the only real flaw I can find in it is that there are some text sections that use an image when they could have easily done it with a little table and some real text. The call to action prompts me to 'rejoin the alliance' rather than sign back up as well.
Other than that, I love this email: