mail just sent to myself (arguably narcissisticbut demonstrative)the mail composition window shown in figure - appears this window is identical in format to the one we saw for the write operationexcept that pymailgui fills in some parts automatically in factthe only thing 've added in this window is the first line in the text editor partthe rest is filled in by pymailguithe from line is set to your email address in your mailconfig module the to line is initialized to the original message' from address (we're replying to the original senderafter allthe subject line is set to the original message' subject lineprepended with "re:"the standard follow-up subject line form (unless it already has onein uppercase or lowercase the pymailgui client