The "identifying line" includes the letter's author's initials. If Diana Michelle Smith typed the letter, she would use dms as her identification initials. If Mary Ann Bryant wrote the letter, she would use mab. Identification lines are often included in correspondence to identify the sender and recipient of the letter. Because most letters today are not written by hand but generated by computers, identification codes are necessary to distinguish one letter from another. The identification code for this letter is dms. The identification code for all subsequent letters that Diana Michelle Smith sends using Word will be the same. It is important to include identification lines in your own letters so that others can find your emails if they are searching for information about you. In addition to or instead of identifying initials, some people may choose to include their name in the identification line. In that case, the identification would read "dms ". This is common when sending emails to many people at once or when writing articles or books where it is necessary to refer to more than one recipient. People who write letters almost always give away personal information in the letter, such as their address or phone number. Therefore, it is important that you write down these identification details quickly and accurately.