開頭 用Hi (比Dear好)  例如 Hi, everyone

常用語

Looking forward to your reply / feedback.

Thank you for considering my request / any help you can provide. 

I will appreciate your help with this situation. 很感謝你願意幫忙。

。Thank you for your time. 是自以為是、冒昧的說法。勿用！

結尾

Regards 前面可加上 kind, warm, best

Cordially 嚴肅場合、談判適用

From: https://www.managertoday.com.tw/english/view/53060