Make sure that your customers give you permission before sending them correspondences via email. If you fail to do this, you will destroy the trust of your existing customers and generate negative word of mouth. Some ISPs and web hosts will also refuse to do business with you, which isn't exactly good for a business that relies on the internet for survival.Use words that are appropriate to the industry you are focusing on in your marketing materials. For example, if you are writing marketing materials for new technological items, use words such as "new," "advanced" or "state-of-the-art" that are commonly used in that industry. Using the right words will help increase your products' appeal to your customers.The best way to avoid sending emails that are spammy is by studying spam emails firsthand. Get a free email address, post this address all over the Internet, and watch how much spam you receive. Make note of why these messages aren't ef...