[DATE, ex. Wednesday, June 11, 1998]
[NAME, COMPANY AND ADDRESS, ex.
1234 First Street
Anycity, Anystate 85245]
Dear [NAME, ex. John Smith],
I would like you to know how pleased I am of the extra effort taken by [NAME, ex. your salesman, Bill Williams]. [STATE ACTIVITY BEING COMPLIMENTED/THANKED, ex. When our order was delayed due to lack of stock, Bill took it upon himself to arrange for special delivery from your manufacturing plant.]
You are certainly fortunate to have [NAME, ex. Bill] at your firm. We are indeed pleased with [his/her] efforts.
[YOUR NAME, ex. Jill Jones]