Good afternoon, XXXXX,
Opening: this is a chance to diffuse tension and set the tone for the memo. Kindly and very briefly state the point of the memo.
Summary: the summary is the body. Here you will present FACTS, not opinions, to allow the read to make an informed decision.
Closing: the final remarks are a call to action. Invite the reader to contact you with any further questions.
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Title
Contact info(can be fake for class)