18. A method for handling electronic mail in a computer system operated by a user, the method comprising: receiving an input from the user; using the input to create an electronic mail message; maintaining a list of attachment indicators, attachment indicators in the list indicating a possible need for an attachment to the electronic mail message; searching text within the electronic mail message for attachment indicators from the list of attachment indicators; determining whether the electronic mail message includes the attachment; and if the electronic mail message does not include the attachment and includes at least one attachment indicator from the list of attachment indicators, indicating to the user that the attachment is missing, possibly receiving a command from the user to add the attachment to the electronic mail message, and adding the attachment to the electronic mail message; and transmitting the electronic mail message.
18. A method for handling electronic mail in a computer system operated by a user, the method comprising: receiving an input from the user; using the input to create an electronic mail message; maintaining a list of attachment indicators, attachment indicators in the list indicating a possible need for an attachment to the electronic mail message; searching text within the electronic mail message for attachment indicators from the list of attachment indicators; determining whether the electronic mail message includes the attachment; and if the electronic mail message does not include the attachment and includes at least one attachment indicator from the list of attachment indicators, indicating to the user that the attachment is missing, possibly receiving a command from the user to add the attachment to the electronic mail message, and adding the attachment to the electronic mail message; and transmitting the electronic mail message. 20. The method of claim 18, wherein searching text within the electronic mail message includes searching the text for a sequence of alphanumeric characters.