If you are sending an email to multiple email addresses, please use the "Bcc" (Blind Carbon Copy) box. This will hide all email addresses.

If you are using Outlook Express (Outlook is similar) and it does not have a "Bcc" box, in order to activate it, first click "reply" to this email and then if  you click on the third tab at the top which says "View" and enable or tick "All Headers". You will only have to do this once only.

You will notice an extra box will appear above. You should have The "To" box, "Cc" box (Carbon copy) an extra box "Bcc" (Blind carbon copy) and then the "Subject" box.

If you have a "From" box it will show your address.

In the "To" box, put your own email address. (Yes you send it to yourself primarily)

Put nothing in the "Cc" box.

Put all the other addresses in the "Bcc" box.

When you send the email it will come back to you and will also go to all of the other addresses   BUT   all the recipients will only see your address, maybe their own address but no-one else's.

If everyone does this, they will eliminate the long list of addresses being transmitted to a potential spammer and we can all remain anonymous.