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how to disable unauthenticated relaying of SMTP messages in Exchange 2

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haniis

haniis

Programmer
May 29, 2008
30
JO
I am using Exchange 2007 sp1
I want to disable unauthenticated relaying of SMTP messages in Exchange 2007
I can telnet mail.domain.com 25
220 Mail.domain.com Microsoft ESMTP MAIL Service ready at..........
then I wrote
Helo
mail from: user1@mail.domain.com
it gave me
250 2.1.0 Sender OK
rcpt to: user2@mail.domin.com
..........
so how to block unauthenticated users from sending.

 
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