Take the email below from Paperless Post, for example. I love the header of this email: It provides a clear CTA that includes a sense of urgency. Then, the subheader asks a question that forces recipients to think to themselves, "Wait, when is Mother's Day again? Did I buy Mom a card?" Below this copy, the simple grid design is both easy to scan and quite visually appealing. Each card picture is a CTA in and of itself -- click on any one of them, and you'll be taken to a purchase page.
Keep the email short. If you write an email that's too long, there's a chance that recipients will skim over it or stop reading it at a certain point. This could mean that they miss your call to action, or what you're trying to get across. Try to edit out pieces of information that aren't critical to the overall message. Make messages as short and concise as possible. Avoid over-elaboration or background that can clutter your blast.
In 2002 the European Union (EU) introduced the Directive on Privacy and Electronic Communications. Article 13 of the Directive prohibits the use of personal email addresses for marketing purposes. The Directive establishes the opt-in regime, where unsolicited emails may be sent only with prior agreement of the recipient; this does not apply to business email addresses.
Make the first three sentences of your blast catchy. The first couple of sentences within your email blast will determine whether the recipient decides to read the rest of it. The intro should draw people in with a sense of urgency or excitement. You can elaborate more on the subject line within your first sentence to give additional clarity to what the email is about, or you can create a sense of urgency and intrigue that compels them to open the email to learn more about the issue.