Very disappointed with the 'new' e-mail app.
Much hype in the announcement on revamped/rewritten mail app in Lion.
Well it is 'only' the presentation layer that got changed. So called conversations, grouping together mails.
No functional enhancements to bring the app on par with other 3rd party mail functionality.
Mail bounce option has been removed, a real bummer.
Smart mailbox rules are still very limited. Try creating a smart mailbox that contains all mail from a group in your address book , let say family, and include all your mails send to that group, excluding trash and the mail all folder from gmail.
. A resonable requirement you would start with setting up smart mailboxes, right?