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How do I block messages

Because spammers send mail to users such as webmaster@mydomain.com and administrator@mydomain.com and to users who no longer exist, it sends the email into the administrator's mailbox.  Is there a way for me to just bounce those incomming addresses all together?  I don't want to have to go through all those messages every day!
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hmccallum
Asked:
hmccallum
1 Solution
 
What90Commented:
If you use either:
http://blogs.msdn.com/dlemson/archive/2003/10/17/52019.aspx
or
http://www.winnetmag.com/MicrosoftExchangeOutlook/Article/ArticleID/40756/40756.html

It tells you how to block NDR's for users that aren't in you domain.

That should help - hopefully!
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hmccallumAuthor Commented:
Those answers are for Exchange 2003 and I have Exchange 2000.
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What90Commented:
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hmccallumAuthor Commented:
I don't want to block senders of emails.  I want to block messages to users that don't exist on our Exchange server.
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obeshawdCommented:
Open Exchange System Manager.  Expand the Global Setting folder then right-click Message Delivery and click properties.  Click on the Recipient filtering tab and put a check in Filter recipients who are not in the directory.  Done
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hmccallumAuthor Commented:
There is no such option in Exchange Server 2000.  That has been offered as an option in Exchange Server 2003 and we've decided to upgrade to enable us to use that filter.
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moduloCommented:
PAQed, with points refunded (250)

modulo
Community Support Moderator
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