To, Cc and Bcc — who actually sees it

Exactly who can see what, and be able to write to twenty people without handing their addresses to nineteen strangers.

Cc and Bcc are leftovers from typewriters and carbon paper, which is why the names make no sense. What they do is straightforward once somebody says it plainly.

Bcc has a second use that is worth understanding before you meet it: quietly copying somebody into a conversation with another person. It is legal, common in offices, and it can go awkwardly.

If the person in Bcc presses Reply all, their reply goes to everybody — and reveals that they were there all along. They had no way of knowing they were hidden, because Bcc looks exactly like an ordinary message from the receiving end.

None of that applies to the ordinary use — a notice going to a list of people who do not know each other. That use has no downside at all, and it is the one worth building into a habit.

Key points

What to remember

Try this

Find the Bcc box in your own email program — it is often hidden behind a small Cc/Bcc link at the end of the To line. Knowing where it lives is most of the work.

Practice: To, Cc and Bcc — who actually sees it. Your first lesson is free, with no account or card; the rest are part of a Lantern plan. Interactive lessons require JavaScript.

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