New code!!
#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
$Form1_1 = GUICreate("Email Sender", 229, 447, 192, 124)
$SMTP = GUICtrlCreateInput("SMTP Server", 24, 16, 153, 21)
$desti = GUICtrlCreateInput("Name of Destinator", 24, 80, 153, 21)
$Adressed = GUICtrlCreateInput("Adress Of Destinator", 24, 112, 153, 21)
$Texte = GUICtrlCreateEdit("", 24, 208, 153, 169)
GUICtrlSetData(-1, "Texte")
$MyButton1 = GUICtrlCreateButton("Go", 48, 400, 124, 30, $BS_FLAT)
$adresser = GUICtrlCreateInput("Adress of receiver", 24, 144, 153, 21)
$portse = GUICtrlCreateInput("Port of the server", 24, 48, 153, 21)
$sujetmess = GUICtrlCreateInput("Subject of Message", 24, 176, 153, 21)
GUISetState(@SW_SHOW)
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
$SMTP = GUICtrlRead($SMTP)
$destinom = GUICtrlRead($desti)
$Adressee = GUICtrlRead($Adressed)
$receveurmessage = GUICtrlRead($adresser)
$sujet = GUICtrlRead($sujetmess)
$Texteenvoi = GUICtrlRead($Texte)
$Port = GUICtrlRead($portse)
Case $MyButton1
EndSwitch
WEnd
Thanks for your help