[Deano]

In case you thought otherwise, the people who receive Bcc messages will be able to see the addresses of the people in the To and Cc fields which, to my way of thinking , makes the Bcc field useless. And if your mail client is set to "Reply All" the resulting reply will have the email addresses in the To and Cc fields as recipients for the reply.

If you don't want your recipients to see each other's addresses, put yourself in the To field and everyone else in the Bcc field. This way anyone replying will only be replying to your address.