Step 1: Select the email message for which you want to set the reminder.
Step 2: Select Home >Follow Up > Add Reminder.
Step 3: In the Custom box, for Flag to, select Follow up or type a description.
Step 4: Check the Reminder box, enter date and time, and then select OK.
Step 5: An alarm bell Remainder icon will appear on the message.
Step 6: To change the time for the reminder, select Follow Up, select Add Reminder, edit the time, and then select OK.