"If you're truly concerned about privacy for anyone to whom you're
sending email, you should be using the "Bcc:" field to completely
hide any recipients information from anyone else also receiving the
mailing. You can do this for individual entries, or for your a mailing list.
You should create a "special" entry in your address book such as "My
Special Friends" or "My Valued Customers" or even "Undisclosed
Recipients, with your own address as the real address. When sending,
then simply put all the individuals to whom you're sending in the "Bcc:"
field, either individually or via a distribution list and your "special"
entry
in the "To:" field.
In order to get the "Bcc:" to show, simply click on "View", while
composing, then select "All Headers".
Be sure to check with your ISP for any limits on the number recipients
you're allowed to send to in a single mailing, and adjust the number of
recipients in the "Bcc:" field accordingly. Also be sure to let your
recipients know that you're going to begin sending them their Email
in this new manner BEFORE you implement it so that they may adjust
their anti-SPAM rules accordingly. They will no longer see THEIR name in the
"To:" field. What they will see there is the "special" entry."
another reference
http://email.about.com/library/weekly/aa101199.htm#body
--
On the other hand, you have different fingers
Touch Base
> The other day I used outlook express and emailed a
> message to a large group of friends. One of the
> recipients took it upon himself to hit "repy all" and
> solicted my friends with multi-level marketing scam. I
> was livid. How can I hide or conceal everyone's email
> addresses when sending a message to group? There has to
> be a better way than sending the message to each person
> Thank you.