Please add an ability to customize a separate sound for mail that is flagged as Friend, or provide an additional checkbox option to only play the one custom sound for Friend mail, or allow separate sounds for each status (though I don't need that personally). I only want to be notified on Friend mails and not other mail that passes the filters and is not otherwise spam. While Mailwasher and my filters do a good job of blocking most unwanted mail, some non-spam mail still gets through and doesn't require my immediate attention.
Cell phones enable separate rings for each caller, so why not email?