the present invention provides a system , a method , and a computer program for providing e - mail address management . e - mail address management is a tool for aggregating one or many e - mail addresses under a unique identifier that simplifies the process of managing and / or applying those email addresses individually . the invention was conceived in conjunction with a pre - trip authorization application used to review and approve travel - related expenses by a company - designated reviewer and authorizer prior to a start of travel . a reservation request is received . a traveler profile based on the reservation request is retrieved . the traveler profile has a unique identifier . a reservation is created . the reservation includes the reviewer group identifier . a reviewer e - mail address is determined from the table housing the reviewer group identifier codes . the reservation is sent to the reviewer e - mail address . a review result is received from the reviewer e - mail address .