Make your subject line brief, detailed, and powerful.
Try keeping it to four or five words. Anything less might not completely deliver the message while anything more than that could lessen the impact of your emails subject line. Subject lines can take various forms. You may turn it as a teaser that’s meant to intrigue your readers, an announcement that’s meant to make your readers sit up and take notice, a question to make them ponder, or simply a greeting that’s just meant to make them open your email with a smile.

Don’t be afraid to insert first and second person pronouns.
Pronouns like I, you, we, our, and us makes your email more personalized and less like a plain marketing copy. It also establishes a relationship between you and your readers, and puts them in a more receptive mood with regard to your message.

Use headers.
Use headers to make it easier for readers to get the gist of your email and convince them at the same time that your email is worth reading from start to finish. As for creating headers, just use the same tips and guidelines provided for creating your subject line.

Keep paragraphs short.
As mentioned earlier, email newsletters are generally skimmed so you should keep your paragraphs short and focusing on one topic at a time. If the article you’re basing your email on contains long paragraphs, don’t be afraid to break them down into several short ones.

Have your email proofread and checked for plagiarism.
You and another person, preferably someone qualified, should proofread your email newsletter before sending it to your readers. Double-check spelling and grammar. Be sure you’ve got all your facts straight and the flow of thought is orderly and cohesive. A professional editor or proofreader will also let you know if there are unnecessary paragraphs to be cut out.

Lastly, use plagiarism-checking software to ensure that there are little, if any, similarities between your work and the article you’re basing your email newsletter on, never mind that you’re discussing the same topic. If your work passes then congratulations for a job well done!

Don’t Send Unsolicited Email
They won’t read it, and that’s best case scenario. What could be worse is that they’ll label your email as SPAM and you risk getting blacklisted by their email provider or have your account suspended or removed. And the worst thing that could happen is for your recipients to spread bad things about you, which you can’t really blame them for since you’re the one at fault. Yes, we know you had good intentions, but it’s just not enough. If you truly have nice news to share then surely you could convince them to give you their email addresses!

Do Build Your Email Opt-In List
Email marketing always starts with an email opt-in list. Opting-in signifies their approval of receiving emails from you. Now, you’re probably wondering how to build your opt-in list, right? First, you need to hook their interest: what could you offer that they’d want badly enough to opt-in to your list? This could be a promise to provide them valuable tips on your area of expertise or other freebies. You could give subscribers a preferential discount rate or some other privilege.

Do Subscribe to a Proper Format
Email marketing newsletters adhere to a general format. It all starts with the subject line: make good use of this. Make sure to call your readers attention, let them know that it’s not SPAM and that they did sign up for it. Lastly, make sure it contains the key topic of your email.

Next to this would be the salutations. Be sure to personalize your letter by addressing them directly and using your recipients name. Your introductory paragraph should be brief and detailed, the body of your email equally concise, and your closing paragraphs containing a summary and call to action.

Don’t Bombard Them with Emails
Consider contacting them on a weekly basis at the least. If, however, you think that what you have to say deserves daily contact then at least give your subscribers an option to receive your email either daily or in a digested form.

Do Offer Them a Chance to Unsubscribe
Lastly, let them know right from the start that they always have the option to unsubscribe. When you do, you’re also letting them know that you’re confident they won’t do that because what you have to share would be truly valuable to them.