This should be a no-brainer, but those are the kind I always like to check on. I use mailmerge to send mass emailings to a list of addresses that's over 150 long. That results in over 150 copies of the email being sent to my 'sent mail' folder. If before I go to my 'local folders-->Outbox' and click on 'send unsent', I go to my account settings and uncheck 'copies and folders-->place a copy in:", and then after the 150 emails are sent I re-check it, does that stop the 150 emails from going to 'sent' without affecting any other sent mail?

Thanks...