Spam again

Hi! Is there a possibility to stop spam from the list? As a nice feature I always get spam after writing a single mail to the list :-( By the way plz kick karatekid44@hotmail.com from the list (if this is the right one) -> see attachement! A nice feature will be to see, if xy is a real user by resending a mail after signing up. Only after a "please type the letters you see" like probe xy gets suscribed to the list. This can stop bots sign to the list. Philippe --- There is a delete button in every mail-client :-)