IIRC, closest you can get is to autobcc yourself and have a rule move the mail to Sent Items. You might need a filter to keep that mail from being pushed to the BB.
FYI -- technically email doesn't sync on the BB regardless of whether you're on BIS or BES. You can get full reconciliation with BES but it's not quite the same thing as sync.
Last edited by takeshi : 07-02-2009 at 10:59 AM.