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Hub Transport "Transport Rule" not working

Posted on 2009-04-09
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Last Modified: 2012-05-06
I have created a Transport Rule to block all messages from the outside to users in a group but when I send meail to the test user in the group I still get the message. Any ideas as to why this would be?
Rule Info:
Restricted Internet Mail
Rule Comments:

Apply rule to messages
from users Outside the organization
   and when any of the recipients in the To or Cc fields is a member of SG-Restricted Internet Email
send Delivery not authorized, message refused to sender with 5.7.1

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Question by:jwhitepnv
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Author Comment

by:jwhitepnv
ID: 24109956
Shell Command that was run:

Summary: 1 item(s). 1 succeeded, 0 failed.
Elapsed time: 00:00:00


Restricted Internet Mail
Completed

Warning:
The command completed successfully but no settings of 'Restricted Internet Mail' have been modified.


set-TransportRule -Name 'Restricted Internet Mail' -Comments '' -conditions 'Microsoft.Exchange.MessagingPolicies.Rules.Tasks.FromScopePredicate','Microsoft.Exchange.MessagingPolicies.Rules.Tasks.AnyOfToCcHeaderMemberOfPredicate' -Actions 'Microsoft.Exchange.MessagingPolicies.Rules.Tasks.RejectMessageAction' -Exceptions  -Identity 'Restricted Internet Mail'

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Accepted Solution

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jwhitepnv earned 0 total points
ID: 24112304
I figured this out. There is a delay in the Hub Tranport server updating the rules. It only updates every 4 Hours unless you start or stop the Hub Transport.

Per Microsoft TechNet article:.  http://technet.microsoft.com/en-us/library/bb124703.aspx

Each Hub Transport server maintains a recipient cache that is used to look up recipient and distribution list information. The recipient cache reduces the number of requests that each Hub Transport server must make to an Active Directory domain controller. The recipient cache updates every four hours. You can't modify the recipient cache update interval. Therefore, changes to transport rule recipients, such as the addition or removal of distribution list members, may not be applied to transport rules until the recipient cache is updated. To force an immediate update of the recipient cache, you must stop and start the Microsoft Exchange Transport service. You must do this for each Hub Transport server where you want to forcibly update the recipient cache.


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