10. A computer-readable storage medium having computer-readable instructions that when executed by a processer, are operable to enable a user to reply to a selected message in an email system, the instructions comprising: a graphical user interface module configured to present on a display device a list of messages and one or more reply options, and receive input from the user to select a message and one of the one or more reply options; and a reply module configured to: (i) determine one or more related messages that are related to the user-selected massage; (ii) populate one or more address fields of a reply message with a message address of a sender of the selected message and a message address of a recipient of the one or more related messages, wherein the recipient of the one or more related messages is neither a sender of the selected message nor a recipient of the selected message; and (iii) store the message address of the sender of the selected message and the message address of the recipient of the one or more related messages, along with information regarding the field of the message from which each address originated.
10. A computer-readable storage medium having computer-readable instructions that when executed by a processer, are operable to enable a user to reply to a selected message in an email system, the instructions comprising: a graphical user interface module configured to present on a display device a list of messages and one or more reply options, and receive input from the user to select a message and one of the one or more reply options; and a reply module configured to: (i) determine one or more related messages that are related to the user-selected massage; (ii) populate one or more address fields of a reply message with a message address of a sender of the selected message and a message address of a recipient of the one or more related messages, wherein the recipient of the one or more related messages is neither a sender of the selected message nor a recipient of the selected message; and (iii) store the message address of the sender of the selected message and the message address of the recipient of the one or more related messages, along with information regarding the field of the message from which each address originated. 14. The medium of claim 10 , wherein the selected one or more reply options comprises an option to reply to the sender and one or more recipients of one or more related messages related to the selected first message.