For a few years we had BCC all recipients in a third-party product. It was great because it respected good netiquette. It went away under a release a couple of years ago. I have a number of lists that I send emails to regularly. When I open a list and click on "Write" it would be very helpful if I could click a box to BCC all recipients. Then, I would not be exposing all email addresses to each other. Having to BCC each one at a time on a large list is a huge pain. This is a simple fix that users would really appreciate.