Jofm5, thanks for your reply. I am aware of the bcc function and often use it when I just want to bcc one or two people. However, I didn't want to use it for the purpose I have in mind .....for the reason you mentioned--that someone could hit "reply all". So, I was hoping there was another way.
About fudging the time an email is sent....I'm wondering if things used to be different with earlier versions of Windows because I'm fairly certain the fellow in question did it from his work computer and we just had basic programs--nothing fancy. But I could be wrong.