Dear XX ,
I am writing to you to express my gratitude to you for ordering the new product of my company.We've made huge efforts on examining and checking the quality of these products.The products have already been mailed to you and you should receive the products in about a week.Hopefully the quality of the products can meet your satisfaction.I sincerely wish that we can cooperate further in the future and I promise my company can provide you the best service.
Yours sincerely
XXX
19th of June 2011