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Block messages sent to recipients not listed in the Global Address List

Posted on 2010-08-19
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Last Modified: 2012-05-10
Hi,

I know that if you enable Anti-SPAM agents on Exchange 2007 you can configure the server so as to reject mailing to recipients not listed in the Global Address List. Let's say that I want one of the employees of the company not to be listed onto the Global Address List (due to privacy issues). Will that disable incoming mailing to them? can I add an exception for that issues?
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Question by:stevthym
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by:Alan Hardisty
ID: 33472538
If you run the following command in the Exchange Management Console, this will force all emails to be checked against the GAL and will reject any that are not listed:
Set-RecipientFilterConfig -RecipientValidationEnabled:$true
This is Anti-Spam independent and if you don't list a recipient - then mail won't arrive for them (a hidden recipient is different).
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Expert Comment

by:apereiras
ID: 33473032
how cant configure this employees to the recipients filters and block messages to then
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by:stevthym
ID: 33473239
alanhardisty thanks for the response. You mean that if a recipient has checked the Box "Hide from Exchange Address lists" he will not get an e-mail in this case?
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Alan Hardisty earned 250 total points
ID: 33474307
No - if they are hidden - they still exist so will continue to receive emails.  It is only if the address does not exist at all (hidden or otherwise), that the messages will get rejected.
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