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Are these NDRs for emails never sent?<br />
If yes. Then how many users are receiving these NDRs.<br />
If all of them then it could mean that the active directory has been harvested by a spammer.<br />
paste the header info of a couple of emails.
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Are these NDRs for emails never sent?
If yes. Then how many users are receiving these NDRs.
If all of them then it could mean that the active directory has been harvested by a spammer.
paste the header info of a couple of emails.

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Spam messages now being routed to correct mail box.
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Spam messages now being routed to correct mail box.

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<div class="content wysiwyg-content">
Dear Experts,<br />
<br />
I have enabled the AntiSpam filter on the Hub Transport screen in Exchange 2007 and set the SCL to 8. I have also enabled a IP Block List here and restarted all services.<br />
I have created and configured a spam mailbox to receive the Spam.<br />
Since I have done this, all spam is now marked as *Underliverable Message* but is still coming through to the users mailboxes.<br />
<br />
Can anybody shed any light on this?<br />
<a href="https://filedb.experts-exchange.com/incoming/2009/02_w08/106805/Spam.png" target="_blank" class="file-inline" title="Inbox Screen Capture (14 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>Spam.png</a>
</div>
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Spam.png

Dear Experts,

I have enabled the AntiSpam filter on the Hub Transport screen in Exchange 2007 and set the SCL to 8. I have also enabled a IP Block List here and restarted all services.
I have created and configured a spam mailbox to receive the Spam.
Since I have done this, all spam is now marked as *Underliverable Message* but is still coming through to the users mailboxes.

Can anybody shed any light on this?

Exchange 2007 Spam Filter Working?

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.