大家在發郵件的時候是不是總用dear來開頭，其實不同場景下郵件的打招呼方式也是不同的，今天的節目就要來教大家一些地道的郵件禮儀！

01.Dear
Although dear can come across as stuffy, it's appropriate for formal emails. Use it when you're addressing a person in a position of respect (e.g., Dear Lieutenant Smith) and in formal business missives such as a résumé cover letter.
用dear作為郵件的開頭是沒問題的，但是很多人會忘記在后面加人的名字，正確的用法是：
Dear Adam, ...
Dear customers, ...
大家可能認為“dear”是表現關系親密的一種打招呼方式，實際上在外國人眼中這個詞很stuffy：
Stuffy: 一本正經的
Too formal: 太正式
所以“dear“適合用在一些比較正式的場合，表示對他人的尊敬：
Dear Mr.Smith, ...（后面可以加姓也可以加名字）

02.Hi & Hello
In all but the most formal settings, this email greeting is the clear winner. It's simple, friendly, and direct. If you want a slightly more formal tone, consider replacing hi with hello.
“Hi”沒有“Dear”聽起來那么正式，適合用在對方和你有一定關系的場合：
Hi Jenny, ...
而“hello”的正式程度介于“Hi”和“Dear”之間，但是還是“hi”更常用一點。
Stand out: 突出
Unobtrusive /ˌʌnəbˈtrusɪv/: 不唐突的
This one bridges the gap between the breezy hi and the more formal dear. It's used less often, though, so be aware that it might stand out, and don't use it if you want your greeting to be unobtrusive.

03.Hi everyone
If you're addressing a group of people, this is the way to go. We prefer it to more abrupt greetings like "All," or the too gender-specific "Gentlemen" or "Ladies."
如果給一群人發郵件，我們可以用：
Hi everyone, ...（適合工作場合）
Hey guys, ...（適合朋友之間）
如果一群朋友中沒有男生，用"hey guys"就不太合適，可以用"hey grils/ladies"；但如果團體里面有女生也有男生，用"Hey guys"就沒問題！

04.Greetings
There are a couple of useful alternatives when you don't know your recipient's name or you're writing to a general email inbox. Greetings is one of them.
如果要給不認識的人發郵件，你可以用：
Greetings, ...
但是寫求職郵件的話盡量不要用greetings，為了給人留下良好的印象，還是盡量找到對方的名字！

05.Hi there
The advantage of Hi there is that it works well if you're sending a mass email or using a mail merge feature with customized name fields.
"Hi there"在口語里也非常常用，會讓別人覺得你很友善，比較適合用在陌生人之間，比如客服場景：
Hi there, my phone breaks, ...

06.Not to use
1.不要用Dear Sir和Dear Madam：
Have you ever read and responded to a letter that greeted you with Dear Sir or Madam? We're going to go ahead and guess you haven't. Not only is this salutation stiff and formal, it shows that you couldn't be bothered to look up a contact name and address someone specific.（這種說法非常過時，而且有點冒犯的感覺）
2.不要用To whom it may concern：
The same sentiments that apply to Dear Sir or Madam apply here. If your letter opens with To Whom It May Concern, we're probably going to assume it doesn't concern us.（這種說法過于正式，讓人覺得很滑稽）
3.最后給大家發求職郵件一些小建議：
Don't use this greeting with job application cover letters. Make a point to find the hiring manager's name, even if that means calling the company and asking. If you can't find a name, "Dear Hiring Manager:"or "Dear [Company] Team:"will work.