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a little more information would be good ... but I am making some assumptions.<br />
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Try safelist aggregation in Exchange 2010. &nbsp;Quoted from MS, &quot;Safelist aggregation can help reduce the instances of false-positives in anti-spam filtering performed by the Edge Transport server. A false-positive is a positive test or filter result in a subject or body of data that doesn't possess the attribute for which the filter or test is being conducted. In the context of spam filtering, a false-positive occurs when a spam filter incorrectly identifies a message from a legitimate sender as spam.&quot;<br />
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link on how to do it : <a href="http://technet.microsoft.com/en-us/library/bb125168.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/bb125168.aspx</a><br />
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a little more information would be good ... but I am making some assumptions.

Try safelist aggregation in Exchange 2010.  Quoted from MS, "Safelist aggregation can help reduce the instances of false-positives in anti-spam filtering performed by the Edge Transport server. A false-positive is a positive test or filter result in a subject or body of data that doesn't possess the attribute for which the filter or test is being conducted. In the context of spam filtering, a false-positive occurs when a spam filter incorrectly identifies a message from a legitimate sender as spam."

link on how to do it : http://technet.microsoft.com/en-us/library/bb125168.aspx [http://technet.microsoft.com/en-us/library/bb125168.aspx]



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We aren't using Edge Transport Service. <br />
What other informating do you need?
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We aren't using Edge Transport Service.
What other informating do you need?

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One of our internal systems generates emails to our users. The mail seems to appear in the junk mail of majority of the users (those who haven't created a personal junk mail rule). <br />
Is there anyway to set a rule from exchange which will apply to all?
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One of our internal systems generates emails to our users. The mail seems to appear in the junk mail of majority of the users (those who haven't created a personal junk mail rule). 
Is there anyway to set a rule from exchange which will apply to all?

Junk mail Exchange 2010

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.