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Version of Exchange would help here. <br />
Depending on the version of Exchange depends on what you need to do.<br />
<br />
Exchange 2003 is very different to Exchange 2007/2010. <br />
<br />
You should also identify which account is being abused to send the spam as well. You can do that from the event viewer. <br />
<br />
Simon.
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Version of Exchange would help here.
Depending on the version of Exchange depends on what you need to do.

Exchange 2003 is very different to Exchange 2007/2010.

You should also identify which account is being abused to send the spam as well. You can do that from the event viewer.

Simon.

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From event viewer can see which account abused to send spam ?
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From event viewer can see which account abused to send spam ?

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You need to state which version of Exchange it is first. <br />
<br />
There are currently six versions of Exchange in active use (some more than others) and they all work in different ways.<br />
<br />
Simon.
</div>


You need to state which version of Exchange it is first.

There are currently six versions of Exchange in active use (some more than others) and they all work in different ways.

Simon.

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currently using exchange 2010 sp3 with latest rollup 9
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currently using exchange 2010 sp3 with latest rollup 9

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Hi All<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp;how do i Stop Spam From the Inside by Locking Down SMTP, some people from outside using smtp auth mail relay on my exchange server, how do i restrict mail relay by using smtp auth ? can i block it by specific public ip addresses ? for example if someone using amtp auth with public ip from outside network, can my exchange block the remote ip using smtp auth other than the internal subnet from exchange server ? <br />
<br />
Keith
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Hi All

       how do i Stop Spam From the Inside by Locking Down SMTP, some people from outside using smtp auth mail relay on my exchange server, how do i restrict mail relay by using smtp auth ? can i block it by specific public ip addresses ? for example if someone using amtp auth with public ip from outside network, can my exchange block the remote ip using smtp auth other than the internal subnet from exchange server ? 

Keith

Stop Spam From the Inside by Locking Down SMTP

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.