Microsoft Outlook - Calculate Your Email Delivery Time By Delaying It (Outlook 2000/2002/2003)
Did you know that you can create an email and send it, but delay its delivery until a later date or time? By doing so, if you change your mind about what you'd like to include in an email, you can go back and retrieve it.
It's also quite useful if you simply need to delay the delivery of a message; for example, if you're going on vacation and don't want to send a message until the following week.
To delay an individual message, create a message and click the Options button on the Standard toolbar of the Message form. Select the Do Not Deliver Before check box in the Delivery Options section. Then, enter a date and time from the accompanying dropdown menu(s). You can manually enter a date and time to deliver the message precisely when you want.