Fundamentals of Business Laws and Business Communication · Writing and Drafting for Business Audiences

Email Writing and Etiquette in Business Communication

Updated 10 October 2026 · Fact-checked

Email is a written, electronic message sent over the internet. A professional business email has a clear subject line, a proper salutation, a short body, a courteous close and a signature. Etiquette (netiquette) means polite, clear, respectful use. To solve MCQs, match the option to these parts and rules.

Understand Email Writing and Etiquette

Email (electronic mail) is a written message sent from one person to one or more people through the internet. It is fast, cheap and keeps a written record. That is why most businesses use it for daily communication.

A business email is not a chat message. It has a purpose, a reader and a tone suited to both. The reader is often busy, so the message must be short, clear and easy to act on.

The usual parts of a business email are:
- To, Cc, Bcc: main receiver, copy receivers, and hidden copy receivers.
- Subject line: a short, specific phrase that tells the reader what the mail is about.
- Salutation: the greeting, such as "Dear Mr Sharma".
- Body: the message, usually an opening, the details and a closing request or action.
- Complimentary close: such as "Regards" or "Yours sincerely".
- Signature block: name, designation, company and contact details.
- Attachments: files, mentioned in the body.

Netiquette means the accepted rules of polite online behaviour. It includes using a polite tone, avoiding ALL CAPS (which reads like shouting), checking spelling, replying promptly, and not forwarding private mail without permission. Use Cc only for people who need to know. Use Bcc to protect email addresses of a large group. Use "Reply All" only when everyone needs the reply.

Formal vs informal emails: a formal email goes to seniors, clients, authorities or people you do not know well. It uses full sentences, polite words and no slang or emoticons. An informal email goes to friends or close colleagues. It may be casual and short. In exams, business emails are treated as formal unless the question says otherwise.

Advantages of email: speed, low cost, written record, easy attachments, one message to many people, and access from anywhere. Disadvantages: no personal touch, risk of misunderstanding of tone, spam and viruses, privacy and security risks, dependence on internet and devices, and information overload.

Key formulas to remember

Parts of a business email: To/Cc/Bcc + Subject + Salutation + Body + Complimentary close + Signature (+ Attachment); Know the order and the purpose of each part.
Good subject line: Short + specific + action or topic clear; Example: "Invoice 214 payment due 30 June" is better than "Hello" or "Urgent".
Cc vs Bcc: Cc = visible copy; Bcc = hidden copy; Receivers in Cc can see each other. Bcc addresses are not shown to others.
Tone rule: Formal email = polite, full sentences, no slang, no emoticons; Informal email is allowed only with close, known readers.
Netiquette basics: Be clear, be brief, be courteous, proofread, protect privacy; Avoid ALL CAPS, excess punctuation and unnecessary Reply All.

How to solve Email Writing and Etiquette questions

Most MCQs on this topic test a definition, a part of an email, a netiquette rule or an advantage or disadvantage. Use this method.

1Read the question and decide what is tested: a part, a rule, formal vs informal, or advantage vs disadvantage.
2Note the reader. If it is a client, senior or stranger, think formal.
3Recall the matching rule from your list: subject line, salutation, Cc or Bcc, tone, netiquette.
4Eliminate options that are rude, vague, too long, careless or that break privacy.
5Watch words like 'always', 'never' and 'only'. They often make an option wrong.
6Pick the option that is polite, clear, brief and suited to the reader.
7Recheck for a negative question such as 'which is NOT good etiquette'.

Quickest way: Courtesy-Clarity-Privacy filter

When to use it: Use it for any etiquette or best-practice MCQ when time is short.

Reject any option that is rude, uses slang or ALL CAPS in a formal setting.
Reject any option that is vague, such as a blank or one-word subject line.
Reject any option that exposes private details, such as showing a long list of addresses to all.
Choose the remaining option, which is usually polite, clear and brief.

Common mistakes in Email Writing and Etiquette

Treating Cc and Bcc as the same.
Both mean 'copy', so they look alike.
Fix: Remember: Cc is visible to all receivers. Bcc is hidden from other receivers.
Thinking a subject line can be left blank or very general.
Students assume the body matters more.
Fix: A subject line should tell the topic in a few words. Readers decide from it whether to open the mail.
Using ALL CAPS to show importance.
It feels like a way to stress a point.
Fix: ALL CAPS reads as shouting. Use bold sparingly or a clear, polite request instead.
Using emoticons and short forms in a formal email.
Students copy chat habits.
Fix: In formal mail use full words and a polite tone. Keep casual style for close, known readers.
Mixing up advantages and disadvantages.
Points like 'written record' and 'no personal touch' are learned as a jumble.
Fix: Learn two short lists: speed, low cost, record, attachments versus no personal touch, security risk, spam, overload.
Using Reply All for every response.
It is quicker than choosing receivers.
Fix: Reply All only when everyone on the list needs your reply. Otherwise reply to the sender.

Worked examples

Example 1

Which of the following is the best subject line for an email asking a supplier to confirm delivery of an order placed on 5 June?
A) Hello
B) Urgent!!!
C) Request to confirm delivery date for order of 5 June
D) Please read this email

Show the solution

A good subject line is short, specific and states the purpose.
Option A is a greeting and says nothing about the topic.
Option B is vague and uses excess punctuation, which is poor netiquette.
Option D tells nothing about the content.
Option C names the action (confirm delivery date) and the order.

Answer: C) Request to confirm delivery date for order of 5 June

Example 2

Priya sends a notice about a training programme to 200 customers and does not want their email addresses visible to each other. Where should she put the addresses?
A) To
B) Cc
C) Bcc
D) Subject

Show the solution

The aim is to keep the addresses hidden from other receivers.
Addresses in To and Cc are visible to all receivers.
Subject is the line that states the topic, not a place for addresses.
Bcc (blind carbon copy) hides the addresses of those placed in it.

Answer: C) Bcc

Exam tips

Learn the parts of an email in order. Questions often ask which part does what.
For 'which is NOT' questions, look for the rude, vague or privacy-breaking option.
Memorise Cc versus Bcc in one line. It is a frequent question.
Keep two short lists ready: advantages and disadvantages of email. Options often swap them.
Unless told otherwise, assume a business email is formal.

Practice questions from Writing and Drafting for Business Audiences

Email Writing and Etiquette: frequently asked questions

What are the main parts of a business email?

The main parts are the To, Cc and Bcc fields, subject line, salutation, body, complimentary close and signature block. An attachment may also be added. Each part has a clear purpose.

What is the difference between formal and informal email?

A formal email is used for clients, seniors and unknown readers. It is polite, uses full sentences and avoids slang. An informal email is used with friends or close colleagues and can be casual.

What is netiquette?

Netiquette is the set of accepted rules for polite and responsible behaviour online. In email it covers courtesy, clarity, proofreading, avoiding ALL CAPS and respecting privacy.

What are the disadvantages of email communication?

Email lacks personal touch and tone can be misread. It also carries risks of spam, viruses and loss of privacy. It depends on devices and internet, and too many mails can cause overload.