Hello,
Do you want to protect the privacy of the people you are sending an e-mail to and not let everyone see a full list of the address that you mailed?
When sending or forwarding an e-mail to a list of address send the e-mail To: yourself and then BCC all of the other recipients.
First, click the link to enable the BCC field:

Next, type in all of the e-mail addresses.

Compose the rest of the message as your would normally and then send.
Do you want to protect the privacy of the people you are sending an e-mail to and not let everyone see a full list of the address that you mailed?
When sending or forwarding an e-mail to a list of address send the e-mail To: yourself and then BCC all of the other recipients.
First, click the link to enable the BCC field:

Next, type in all of the e-mail addresses.

Compose the rest of the message as your would normally and then send.