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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.

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up vote 6 down vote accepted

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.

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The Exchange admin was able to confirm the BCC address using the logs on the Exchange server itself. Thanks for the advice. – dangowans Sep 20 '12 at 14:38

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

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Thanks 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 Sep 18 '12 at 15:37

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