CC vs. BCC in email: when to use which

What do CC and BCC mean?

When you send an email, you see the CC and BCC options next to the "To" field. These abbreviations date back to the days of typewriters and carbon paper. CC stands for "Carbon Copy" (a copy made with carbon paper) and BCC stands for "Blind Carbon Copy" (a hidden copy). Even though nobody has used carbon paper for a long time, these features are still essential for effective email communication. In this article, we explain the difference and when to use which option.

The To field explained

Before we get into CC and BCC, it's important to understand the "To" field well. This field is meant for the main recipient(s) of your message: the person or people you expect a response or action from. If you ask a question, you put the person who should answer in the "To" field. If you assign a task, the person responsible goes here.

Multiple recipients in To

You can put several email addresses in the "To" field. Only do this if all recipients are equal in terms of the expected action or response. For example, if you send a meeting invitation to three colleagues who all need to respond, you put all three of them in the "To" field.

CC: Carbon Copy explained

You use the CC field to send people a copy of your email for their information. These recipients are not addressed directly and no action is expected from them, but they are kept informed about the communication.

When do you use CC?

Use CC when you want to keep someone informed about a conversation without expecting a reply. Typical examples are CC'ing your manager on important customer communication, informing team members about a project update, or sharing information with stakeholders who are involved in a topic.

An important property of CC

All recipients, both in the "To" field and in the CC field, can see each other's email addresses. This is an important point to remember, because sometimes you don't want recipients to know each other's addresses. In that case, you use BCC.

BCC: Blind Carbon Copy explained

BCC stands for Blind Carbon Copy. Recipients in the BCC field receive a copy of the email, but their address is invisible to all other recipients. BCC recipients also can't see each other's addresses.

When do you use BCC?

BCC is useful in several situations. You can use it when sending emails to large groups where you want to protect the recipients' privacy. Think of newsletters to customers: by putting all addresses in BCC, you prevent everyone from seeing the entire customer list. BCC is also handy for sending yourself a copy for your records, or for discreetly keeping someone informed about a conversation.

Privacy and BCC

An important advantage of BCC is privacy protection. If you send an email to 50 people who don't know each other, it's inappropriate to make all of their email addresses visible. By using BCC, they all receive the message without their address being shared with the other recipients.

Practical examples

Let's look at a few concrete situations to clarify the difference between To, CC and BCC.

Example 1: Project communication

You send a status update about a project to the project lead. Your manager wants to stay informed. In this case: To = project lead (expected to act or confirm), CC = your manager (for information). Everyone involved can see who received the email.

Example 2: Group invitation

You're organizing a party and sending an invitation to 30 friends who don't all know each other. Put your own address in the "To" field and all the guests in BCC. This protects everyone's privacy and prevents "reply all" chaos.

Example 3: Customer communication

You're answering a question from a customer and want a colleague to read along because of possible follow-up. To = customer, CC = colleague. Everyone sees who is included in the email, which provides transparency.

Example 4: Informing someone discreetly

You send an email to a supplier about a problem. You want your manager to read along, but you don't want the supplier to know your manager is being informed. To = supplier, BCC = manager. The supplier only sees their own address.

CC and BCC etiquette

Using CC and BCC correctly is part of professional email etiquette. Here are guidelines for appropriate use.

Don't overdo CC

A common mistake is CC'ing too many people. For every name, ask yourself: does this person really need to be informed? Unnecessary CCs clutter other people's inboxes and can come across as unprofessional.

CC with a reason

When you CC someone, it's often polite to mention why in the email. For example: "I'm copying Jan so he's up to date on the schedule." This prevents confusion for the CC recipient about why they received the email.

BCC for mass mailings

When you send an email to many people who don't need to know each other, always use BCC. This is not only privacy friendly, it also prevents someone from accidentally using "Reply all" and spamming dozens of people.

Be careful with reply all

If you receive an email where you're in the CC, think carefully before you click "Reply all". Often a direct reply to the sender is enough and not everyone needs to see your response.

CC and BCC in different email programs

All email programs support CC and BCC, but the interface differs.

Gmail

In Gmail, you click "Cc" or "Bcc" to the right of the "To" field to show these fields. They're hidden by default to keep the interface uncluttered.

Outlook

In Outlook, CC and BCC are often visible by default. If BCC isn't visible, you can turn it on via "Options" > "Show Bcc" in the compose window.

Apple Mail

In Apple Mail, you can show the BCC field via "View" > "Bcc Address Field". CC is visible by default.

Common mistakes with CC and BCC

Avoid these common blunders in your email communication.

Forgetting BCC on a group email

Sending an email to a large group without using BCC exposes everyone's email address. This is a privacy violation and can lead to unwanted messages between recipients.

Accidentally forwarding a confidential BCC

If you're in BCC and forward the email to others, your original BCC position becomes visible in the forwarded version. Be careful with this in sensitive communication.

Reply all when you're in BCC

If you're in BCC and click "Reply all", your reply is sent to everyone in the "To" and "CC" fields, which unintentionally reveals your BCC position.

Tips for effective use

Here are a few practical tips for using CC and BCC effectively.

Make a conscious choice

For every email, think about who belongs in which field. Ask yourself: who do I expect action from (To), who needs to be informed (CC), and whose presence should stay hidden (BCC)?

Use BCC for yourself

If your email program doesn't keep "Sent Items" or you want a copy in a specific folder, you can put yourself in BCC. This is a tidy way to archive emails.

Minimize the potential for reply all

If you know some recipients tend to click "Reply all", consider putting them in BCC to keep email threads manageable.

Conclusion

Using To, CC and BCC correctly is a basic skill for professional email communication. The "To" field is for main recipients you expect action from, CC is for people you keep informed, and BCC is for recipients whose presence you want to keep hidden. By using these fields deliberately, you communicate more clearly, protect privacy where needed, and avoid frustrating your recipients. The next time you write an email, take a moment to think about who belongs where. Your recipients will thank you.

Frequently asked questions

Can BCC recipients see who else is in BCC?

No, BCC recipients can't see each other's addresses. They only see their own address and the addresses in the 'To' and 'CC' fields. The 'B' in BCC stands for 'Blind': the recipient is invisible to others.

Can I tell whether I was in BCC on an email I received?

Yes, if you receive an email and your own address isn't in the 'To' or 'CC' field, you were probably added via BCC. Some email programs indicate this explicitly, others don't.

Is it rude to put someone in BCC?

That depends on the context. BCC to protect privacy in group emails is appropriate. BCC to let someone secretly read along without others knowing can be seen as unethical, depending on the situation and your organization's culture.

What happens if a BCC recipient clicks 'Reply all'?

Their reply goes to everyone in the original 'To' and 'CC' fields, which reveals their presence to those recipients. Other BCC recipients don't receive the reply.