Finding BCC in Internet mail headers

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I am running Outlook 2010 connected to an Exchange 2003 server. Often times, the spam that I received is sent to "undisclosed-recipients". I'm guessing that's because my email address (or an email address for a group I am part of) is in the BCC field.

Is there a way to find out what BCC address was used to reach me? I looked at the Internet Headers for the message, but am not seeing "Envelope-to", described in a similar question.

dangowans

Posted 2012-09-18T14:52:34.380

Reputation: 1 774

Answers

10

There is no such thing as a "BCC field"; BCC in email is performed by adding the recipient to the envelope but not the headers, which means that they are undetectable unless the email server is explicitly configured to reveal them somehow.

Ignacio Vazquez-Abrams

Posted 2012-09-18T14:52:34.380

Reputation: 100 516

The Exchange admin was able to confirm the BCC address using the logs on the Exchange server itself. Thanks for the advice. – dangowans – 2012-09-20T14:38:48.270

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In the internet headers, you should see a line Received by: xyz for <your email addr>.

ott--

Posted 2012-09-18T14:52:34.380

Reputation: 1 911

1Thanks for the tip. I do see my email address occasionally in other spam messages in a line similar to above. Unfortunately, not in this particular email. – dangowans – 2012-09-18T15:37:34.013

1

Here is the simple test case I have created for the BCC field.

  1. Create new email with BCC only.

    Screen Shot

  2. Check the raw message at received end(Here I sent to Gmail). If you have a close look on the raw message in the screen shot with highlighted for then you can see the BCC which I have added while sending an email.

    Screen Shot

Prateep Gedupudi

Posted 2012-09-18T14:52:34.380

Reputation: 111

This only shows your own email address, that is, the email address shown in the headers is the email address from which you are checking you are mail. It does not show other BCC recipients. The example you show here is one in which you have sent and received a BCC email to the same email address. – Meitar – 2019-11-14T17:59:51.253