Emphasizing the referral as a mutual acquaintance always gives a sales call more credibility. Use this introduction as a springboard for setting up a face-to-face meeting.
1234, Main Street
Boston, MA 02123
08 April, 2005
<Recipient Address Goes Here>
<Person referring> suggested that you might be interested in discussing <product or service>. If your organization is currently considering <task>, I'd like the opportunity to review your needs and give you a proposal on how we could help you.
<First name of person referring> is one of our valued customers and I'm sure could give you a good idea of the quality of the <product/service> we offer. I'm enclosing some information on our <product, business, or service> for you to look over. After you've had a chance to review the material, I will call you to see when we might be able to meet.
<First name of person referring> has spoken highly of you. I look forward to our meeting and hopefully doing business together. Thank you for your consideration.
encl: <List of enclosed items goes here>