The Mail Window is used to prepare the MPC Report file for submission to the MPC.

To: The e-mail address to which the message will be sent. The software will automatically insert the address of the MPC here.
CC: Additional e-mail addresses, to which a copy of the message will be sent. Enter one address in each line. By default, the software will insert the addresses as specified in the Internet Settings here.
Subject: The subject of the message. By default, this is "Observations".
Message Text: The message text. By default, this is the contents of the MPC Report file, but you may edit the message text (e.g., to add comments on the observetions, etc.).