Email has been around for decades, but a few small features still cause confusion—and BCC is one of the most useful. Whether you are sending a company update, inviting people to an event, or protecting a list of contacts from being exposed, knowing how to use BCC properly can make your message more professional, private, and organized.
TLDR: BCC stands for blind carbon copy, and it lets you send an email to someone without other recipients seeing their address. To use it, open a new email, click or tap the BCC field, add the hidden recipient, then write and send your message as usual. Use BCC when you want to protect privacy, avoid reply-all chaos, or send a message to a large group discreetly.
What Does BCC Mean?
BCC means blind carbon copy. It is similar to the regular CC field, except recipients listed in BCC are hidden from everyone else who receives the email. If you place someone in the BCC field, they will receive the message, but their email address will not appear to the people in the To or CC fields.
Think of it as a discreet way to keep someone informed or to send one message to many people without revealing the entire recipient list. The sender can see who was BCC’d, but recipients cannot see the BCC list.
BCC vs CC vs To: What’s the Difference?
Before using BCC, it helps to understand the three main recipient fields in an email:
- To: Use this for the main recipients—the people expected to read, respond, or take action.
- CC: Use this for people who should be kept in the loop but are not the primary audience. Everyone can see CC recipients.
- BCC: Use this for hidden recipients. People in BCC receive the email, but their addresses are invisible to others.
For example, if you are emailing a project update to your team, you might put your team members in To, your manager in CC, and an external consultant in BCC if they need to monitor the conversation quietly. However, that last example should be used carefully, because hidden monitoring can feel deceptive in some workplace situations.
How to BCC Someone in an Email
The basic process is similar across most email platforms:
- Open your email app or website.
- Click or tap Compose or New Message.
- Look near the recipient field for BCC. In some apps, you may need to click CC/BCC first.
- Enter the email address of the person you want to BCC.
- Add your main recipients in the To field.
- Write your subject line and message.
- Review the recipients carefully, then click Send.
The most important step is reviewing the fields before sending. Accidentally placing a private list in CC instead of BCC can expose addresses to everyone, which may be embarrassing or even violate privacy rules.
How to BCC in Gmail
In Gmail, start by clicking Compose. In the message window, you will see the To field. On the right side of that line, click BCC. A new BCC field will appear underneath. Enter the hidden recipient’s email address there, then complete the rest of your message.
If you are sending to a group and do not want anyone’s address visible, you can put your own email address in the To field and place everyone else in BCC. This is common for newsletters, announcements, event reminders, and community updates.
How to BCC in Outlook
In Microsoft Outlook, create a new email and look for the BCC option. In the desktop version, it may be under the Options tab. Click BCC, and the field will appear in your message window. In Outlook on the web, you can usually select BCC directly beside the To field.
Once the BCC field is visible, type the recipient’s email address and send the message normally. Outlook will remember that you used the field, so it may appear automatically in future messages.
How to BCC on iPhone, Android, and Apple Mail
On mobile devices, BCC is often hidden to save space. In the iPhone Mail app, open a new message and tap the Cc/Bcc, From line. The CC and BCC fields will expand, allowing you to add hidden recipients. In Gmail or Outlook mobile apps, tap the small arrow or CC/BCC option next to the recipient field.
In Apple Mail on a Mac, open a new message and look for the address header area. If BCC is not visible, choose View and then select Bcc Address Field. After that, you can add BCC recipients just like you would in any other email program.
When Should You Use BCC?
BCC is especially helpful when privacy matters. Here are some good situations for using it:
- Sending to a large group: Protect everyone’s email address by placing recipients in BCC.
- Preventing reply all chains: BCC stops recipients from replying to the entire list.
- Sharing announcements: Event updates, school notices, club messages, and customer reminders often work well with BCC.
- Maintaining discretion: You may want to keep someone informed without making them part of the visible conversation.
For instance, if you are organizing a volunteer event, BCC lets you contact everyone without exposing personal email addresses. It also reduces clutter, because recipients cannot accidentally start a long group discussion by hitting Reply All.
When Not to Use BCC
BCC can be useful, but it is not always appropriate. Avoid using it in ways that feel secretive, manipulative, or misleading. In professional settings, secretly BCC’ing a supervisor on a sensitive conversation can damage trust if the recipient finds out.
Also remember that a BCC recipient can still reply. If they click Reply All, their response may reveal that they were included. While most email clients do not expose the full BCC list, the hidden recipient can unintentionally make their presence known.
BCC Etiquette Tips
To use BCC well, follow a few simple guidelines:
- Use it for privacy, not spying. Protecting addresses is a good reason; secretly monitoring people is usually not.
- Explain when appropriate. For group emails, you can write, “I’ve BCC’d everyone to protect contact information.”
- Double-check the fields. Make sure private recipients are actually in BCC, not CC.
- Use mailing tools for very large lists. If you regularly send marketing emails, a proper email platform is better than manual BCC.
Common Mistakes to Avoid
One common mistake is leaving the To field empty. Some email services allow this, but others may flag the message as suspicious. A simple solution is to place your own email address in the To field and put all recipients in BCC.
Another mistake is using BCC for ongoing conversations. If people need to collaborate, BCC is usually the wrong choice because it hides participants and can create confusion. Use BCC for one-way communication, not group decision-making.
Finally, do not assume BCC guarantees total secrecy. Email can be forwarded, screenshots can be taken, and replies can reveal context. BCC is a privacy tool, not a security shield.
Final Thoughts
BCC is a small email feature with a big impact. It helps protect privacy, keeps inboxes cleaner, and makes mass communication more respectful. The key is to use it thoughtfully: add hidden recipients only when there is a clear reason, review your fields before sending, and avoid using BCC in ways that could erode trust.
Once you know where to find the BCC field in your email app, the process is simple. The real skill is knowing when to use it—and just as importantly, when not to.