《白领英语900句》：商务信件简洁明了，姓尾客套话常常只须一个词，如美式英语常用“Thanks” “Best” “regards” “sincerely”, 英式英语“yours truly” “yours sincerely” “Best wishes”.称呼和正文之间、段落之间，正文和结尾客套话之间一般空一行，开头无需空格。

无限扩展:

Opening(开头)

Thank you for ordering from us.

In reply to your request I can confirm that……

Thank you for your recent letter/fax.

Thank you for your enquiry about our products.

I am writing to enquire whether...

Reason for writing （写信的原因）

I'm sorry I wasn't available to take your call yesterday.

I tried to phone you this morning but you were out of the office.

I'm sorry for the delay in replying to your e-mail but I needed to check some information with our shipping department. I can now confirm that your order has been shipped by air freight. It should reach you in two days.

Thank you for your e-mail. There is one point I don't quite understand. Can you please confirm that the catalogue number of the item you require is 33/444-A?

I am sorry to inform you that we have to cancel this order.

Request for action (确认事宜)

If you have any further questions please call me or e-mail me.

If I can help you in any way, please e-mail me at the address below

I will let you know as soon as possible if I have any further news.

Please confirm that these arrangements are OK.

closing

Looking forward to hearing from you.

I am looking forward to meeting you on May 1st.

Tips:

Keep your message short - people don't like long email.

(你的信件一定要简洁明了，人们都不喜欢太长的邮件。)

Don't use abbreviations unless you're quite sure your reader will understand them.

（不要使用缩写除非你很确定对方一定能理解。）

Only use capital letters for special emphasis.

（只有在特别强调的时候才用大写字母.）

Don't use underlining - underlining looks like a hyperlink to a website.

（不要用下划线，因为看起来像一个网址。）

For clarity, put a complete line space between each paragraph.

（为了条理清晰，在两段之间要空一行。）

Make sure your spelling and grammar are reasonably correct

（确保你的拼写和语法要正确。）

Never send an e-mail without checking it through carefully.

（如果没有仔细检查过不要随意发送。）

Make sure you have attached any attachments you want to send.

（确保你的附件都已附上。）

Make sure you're sending it to the right person! （确保你发对了人）。