Thank you for that info Dale.

>The sender used a feature called "Blind Carbon Copy", abbreviated Bcc.
>
>If you send an email to multiple addresses, the Bcc prevents all the addresses from showing up on each of the Recipients emails.
>
>You can read more about this at: http://www.rrudder.com/safe/bcc.html
>
>
>>I just received an unsollicited e-mail.
>>
>>In the "To:" portion there is a "Undisclosed-Recipient::"
>>
>>What is this?
>>
>>How does this work?