Fi wrote:

I have upgraded from OL2000 to OL2003 on Exchange 2003.

Is it true with OL2003 "do not deliver before" option you have to be
logged into Outlook for this to work? As I am sure as a user I have
been logged out and it has worked.

Can anyone clarify how the "do not deliver before" option works
please on OL2003 using Exchange 2003?

If you are using an Exchange server for your mailbox, then Outlook does not
have to be running when the delivery time arrives because Exchange is the
delivery agent. If you are not using Exchange, then Outlook must be
running.
--
Brian Tillman [MVP-Outlook]