件名：大沢の同僚の佐藤直樹です Subject:From Naoki Sato, Colleague of Mr. Osawa My name is Naoki Sato of ABC Corporation. I am in charge of employee training in the Human Resources Department. I was introduced to you by Mr. Osawa and we exchanged business cards at the social event the other day. 【その他の表現】 I am writing this e-mail because I was referred to you by Mr. Takahashi of FIS Co. I received your e-mail addr
