Another approach would be to deliver only the list copy. That of course has its own issues.
However, most of our users use gmail, and gmail does de-duping itself on message id, so most of our users will a) not notice if we change the setting, and b) not care either.
Another approach would be to deliver only the list copy. That of course has its own issues.
However, most of our users use gmail, and gmail does de-duping itself on message id, so most of our users will a) not notice if we change the setting, and b) not care either.