请问商务信件写作要注意什么?请问商务信件要注意什么,主要是翻译英语的商务信函,什么开头称呼阿,结尾阿,希望大家帮下忙

信函是公司的脸面，它对于公司树立良好的形象有着极为重要的意义。典型商务信函的内容应包括如下几点：
信头：一般来讲，商业信函均使用印有"letterhead"的公函信笺，这样信头就不必自己再写了。
信内地址：写在信纸的左上角，编号和日期下方。顺序是从小到大：
公司名称或收信人姓名、职务
房屋或大楼名称
大楼号码及所在街道或路的名称
省市名称及邮编
国家名称
称呼敬语：如知道对方姓名，就用Dear Mr./Mrs./Miss/Ms.加上姓，如不知道对方姓名，可用Dear Sir, Dear Madam, 也可用：To whom if may concern。如对方职务较高，则最好用其职务名称，如： Dear Prof. Smith, Dear Dr. Henson等。 称呼一家公司就用Dear Sirs 或Gentlemen。
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结束敬语：如称呼用Dear Sir/Dear Sirs/Dear Madam", 结束敬语就应用Yours faithfully。如称呼用Dear Mr. John/Dear Mr. Smith, 结束敬语就应用Yours sincerely。
署名
英文信函中讲究五C原则，也就是要求做到正确(Correctness)、清晰( Clearness )、简明( Conciseness )、完整( Completeness )和礼貌( Courtesy )。 信函的语调也是同样重要的，它表达了你对收信人的态度，适当的语调将会给双方创造良好的沟通气氛。

商业信函有其自身的特点.下面是商务书信写作中的几点注意事项,小心不要在你自己的工作中出现这样的错误哦!
1.切忌主客不分或模糊.例子:Deciding to rescind the earlier estimate,our report was updated to include $40,000 for new equipment.应改为 Deciding to rescind our earlier estimate,we have updated our report to include $40,000 for new equipment.(We决定呀,不是report.)
2.句子不要零碎.
例子:He decided not to audit the last ten contracts.Because of our previous objections about compliance.两个句子应该连在一起：He decided not to audit the last ten contracts because of our previous objections about compliance.
3.结构对称,令人容易理解.例子:The owner questioned the occupant's lease intentions and the fact that the contract had been altered with ink markings.应改为:The owner questioned the occupant's lease intentions and ink alterations of the contract.
4.单复数不要搞乱,不然会好刺眼,看着不舒服.例如:An authorized person must show that they have security clearance.应改为 Authorized persons must show that they have security clearance.
5.动词和主语要呼应.想想这两个句子的分别:1.This is one of the public-relations functions that is under-budgeted.2.This is one of the public-relations functions,which are under-budgeted.
6.时态和语气不要转换太多.看商务英语已经是苦事,不要浪费人家的精力啊.
7.标点要准确.例如:He did not make repairs,however,he continued to monitor the equipment.应改为:He did not make repairs; however,he continued to monitor the equipment.
8.选词正确.像affect和effect,operative和operational等等就要弄清楚才好用啦.
9.拼字正确.有电脑拼字检查功能后,就更加不能偷懒.
10.大小写要注意.除非必要不要整个词都大写,除非要骂人.例如:MUST change to OS immediately.外国人就觉得不礼貌和喝令人一样.要强调的话,用底线,斜字,粗体就可以了.