Code:
ON *:JOIN:[color:red]#YourChannelName[/color]:{
  if (*!*@*.nl iswm $fulladdress) {
    [color:red].timer 1 5[/color] msg $chan Hallo $nick [color:red]$+[/color] , Welkom bij de online helpdesk van Ace-Sytems
  }  
  else {
    [color:red].timer 1 5[/color] msg $chan Hello $nick [color:red]$+[/color] , Welcome [color:red]to[/color] the online heldesk of Ace-Systems
  }
}