Dear
This is to announce our 10% Special Discount Offer that we are making on all orders for the following items for the month of [month] only：
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This 10% discount is available on any order set for delivery from [date] through [date] ，and is our way of saying thank you for being such a valued customer.
We hope you will take advantage of this offer and will send us your purchase order today. We will look forward to hearing from you.