# Undisclosed Recipient

**URL:** https://boards.straightdope.com/t/undisclosed-recipient/287309
**Category:** Factual Questions
**Created:** [January 29, 2005, 6:36pm UTC](https://boards.straightdope.com/t/undisclosed-recipient/287309 "2005-01-29T18:36:46Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![olefin](https://avatars.discourse-cdn.com/v4/letter/o/d78d45/32.png) [@olefin](https://boards.straightdope.com/u/olefin)
#### Post date: [January 29, 2005, 6:36pm UTC](https://boards.straightdope.com/t/undisclosed-recipient/287309/1 "2005-01-29T18:36:46Z")

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When sending email as BCC (Blind Carbon Copy or Undisclosed Recipient) doesn’t show the address, even in “Show all Headers”.

I’ve know this for years but never known how it works, so how does the mail get through?

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### Author: ![spingears](https://avatars.discourse-cdn.com/v4/letter/s/ebca7d/32.png) [@spingears](https://boards.straightdope.com/u/spingears)
#### Post date: [January 29, 2005, 9:08pm UTC](https://boards.straightdope.com/t/undisclosed-recipient/287309/2 "2005-01-29T21:08:58Z")

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> [@olefin](#):
>
> When sending email as BCC (Blind Carbon Copy or Undisclosed Recipient) doesn’t show the address, even in “Show all Headers”.  
> …so how does the mail get through?

It’s all in the programming. A copy is sent to each BCC/UR and any others designated. 😃