You can plant a flag in a message that you send to someone else to remind that person of a task they have to
do (provided that the recipient also uses Outlook). To attach a flag to your outgoing e-mail messages, follow
these steps:
Open a New Message by clicking the New Message button or pressing Ctrl + N.
You can add the flag before or after you compose and address the message itself.
Click the Flag button (looks like a little red pennant) on the New Message toolbar.
The Flag for Follow Up dialog box appears.
Click the down-arrow at the right end of the Flag To text box and choose one of the menu items.
A handy flag is actually "Follow Up," which will remind the person to do something about your
message on a particular date.
Click the Reminder box and type the date on which you want the reminder flag to appear. If you'd rather just
pick a date from a calendar, you can click the little down-arrow next to the Reminder box to reveal a
calendar, and then click the date you want.
Click OK.
When the date that you entered in the Flag for Follow Up dialog box arrives, a reminder dialog box pops up
to jog the recipient's memory.
Caution: Unless you are the person's manager or head of some committee, you can annoy and alienate some of
your coworkers this way