One thing that you should always remember while writing your newsletter is that you should not add blocks of content. A lengthy email is boring to read and no potential client will ever be ready to finish reading these newsletters.
Whenever you write a newsletter make sure that you add 90% information and 10% promotion. This way you will be able to showcase your creditworthiness to your potential clients and gain their trust.
While adding a call to action button in your newsletter make sure that you use real details. Whether it is information about your business, address, or phone number. Everything should be real so that your customers you do not treat your newsletter as spam.
Whatever product or service you are offering make sure that you share every possible information about it in your newsletter. The more information you share with your customer the more chances are of them getting in touch with you sooner.
Always give your readers a reward for opening your email and going through it. You can even add discount codes or coupons to your newsletter so that customers feel like engaging in your product or service. Apart from this it will also give them a sense of positive use of the time.