hmm we use a spamassasin on server
it scans mail and if it is detected as spam it is removed
but if this is first mail the first one is send normally, just to inform you that sth like that exist and it came over the server
when more than 3 mails will come like that then it is considered as sam and deleted immediaely
souds cool, huh?
unfortunately in last weekend i got 50 mails with exackly the same contents
the different domains and mailusers confudes the program (although the contents were the same it treated it at first as different mails)
but thank god id as only once and now it filtered that on second attack
otherwise i would get 300 mails of spam everyday