You didn't stop relay. I don't know to Exchange 5.5 , but to Exchange 2000 , the paper to stop this is: q319356, maybe it can help you. Alex Decarli -----Mensagem original----- De: miki [mailto:miki399@xxxxxxx] Enviada em: terça-feira, 2 de julho de 2002 15:31 Para: [ExchangeList] Assunto: [exchangelist] even after stopping relay http://www.MSExchange.org/ Hi All, We are using Exchange server 5.5 with service pack 4.We have stopped relaying using microsoft document and able to stop spam. But now spammers are using emailId from our organization like user@xxxxxxxxxx where domain.com is our own domain name and successfully able to send spam emails to email addresses to same domain. for example we are using ourdomain.com.Spammers are using any emailid like user4@xxxxxxxxxxxxx and send emails to user1@xxxxxxxxxxxxx,user2@xxxxxxxxxxxxxxxxxx How to stop this??? Thanks ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: decarli@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')