Personalize your message. Prospects respond better when your message uses their name. Response goes up even higher when your message refers to their particular situation and offers a good-fitting solution. By personalizing the email, you are showing that you care about your relationship with the customer. You should also try to maintain that relationship throughout your emails.
Email is great for staying in touch with customers and prospects.
Send out regular messages to stay in contact. Most sales are dependent on repeated contact. High-ticket items and services almost always need multiple contacts to sell. People like informative newsletters, short tip sheets, friendly notes, and announcements of special offers. With this kind of information, most people won't feel that they are being pestered.