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How to use zen spamhaus with Exchange 2007?

Posted on 2009-04-07
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Last Modified: 2012-06-27
How do you configure Edge Server to use Zen from Spam haus?  Do you have to buy Zen? If so where do I buy it?  Is there a step by step out there?
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Question by:lynndaly2000
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by:tigermatt
ID: 24095209

Add it as an IP Block List Provider in the Edge Server's Configuration: http://technet.microsoft.com/en-us/library/bb691031.aspx.

The provider name is 'Spamhaus', the lookup domain zen.spamhaus.org.

-Matt
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by:lynndaly2000
ID: 24111068
Thanks!  How do I know if its working?  Will the rejected e-mails be sent to the quartine box or will they just be blocked?
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by:tigermatt
ID: 24111518

You won't get much spam, and an RBL (in conjunction with other anti-spam techniques) means message tracking logs won't report an inordinate number of emails accepted and then NDRs sent.

The messages won't be quarantined, since the RBL is checked the moment the remote server connects. If its IP address is a positive match for an address on the RBL match, the session is immediately dropped by the server; no further communication takes place - the message is never transmitted to your server.

-Matt
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by:lynndaly2000
ID: 24149186
I really want to keep a quarantine is there anyway to do this?
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tigermatt earned 2000 total points
ID: 24149345

No. The way an RBL works, the connection is rejected before any message data is transferred to your server. The intention behind this being that very little bandwidth, CPU cycles and processing time is used to handle the inbound connection, which, if listed on an RBL, is most likely to be spam mail anyway.

This is simply the nature of an RBL and the way in which it is implemented,

-Matt
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