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Limit the amount of the emails that can be sent in Exchange 2010

Posted on 2014-02-06
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Last Modified: 2014-02-13
Heyas,

How do you limit the amount of emails that can be sent from the exchange server at one time to prevent blacklisting the server. I would like to specify options per user and for the entire LAN that goes through the exchange server.

Thank you.
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Question by:Zack
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Leon Kammer earned 250 total points
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Hi,

Exchange 2010 can limit the number of messages a user sends using the RecipientRateLimit and MessageRateLimit parameters in a Throttling Policy.

MessageRateLimit controls the number of messages per minute that can be submitted.

When messages are submitted using Outlook or OWA, the messages will stay in the Outbox longer when the user submits messages at a rate greater than the MessageRateLimit parameter. The messages are deferred, and will eventually be sent.

RecipientRateLimit limits the number of recipients that a user can send to in a 24-hour period. The user will receive an NDR for messages in excess of the limit.

To create a new policy where the users can send to 100 recipients a day and no more than 1 message per minute, you would use this command:

New-ThrottlingPolicy -Name LimitMessagesSent -RecipientRateLimit 100 -MessageRateLimit 1

To assign it to a user, use this command:

Set-Mailbox -Identity user_alias -ThrottlingPolicy LimitMessagesSent

Cheers

Leon
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by:Gareth Gudger
Gareth Gudger earned 250 total points
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by:Zack
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Cheers for the info.
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