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In order for Symprex Out-of-Office Manager to function correctly on Exchange Server 2010 and higher, it is necessary to disable client throttling for the service account and for each user of the application. This can be accomplished as follows:
To create the policy for the Service Account
1.Open the Exchange Management Shell and connect to Exchange Server.
2.Type the following command:
New-ThrottlingPolicy <Policy>
where <Policy> is a suitable, unique name for the policy (for example, OOMServiceAccountPolicy)
3.On Exchange Server 2010 (SP1 and higher), type the following command:
Set-ThrottlingPolicy <Policy> -EWSFastSearchTimeoutInSeconds $null -EWSFindCountLimit $null -EWSMaxConcurrency $null -EWSMaxSubscriptions $null -EWSPercentTimeInAD $null -EWSPercentTimeInCAS $null -EWSPercentTimeInMailboxRPC $null
4.On Exchange Server 2013 and Exchange Server 2016, type the following command:
Set-ThrottlingPolicy <Policy> -EwsCutoffBalance Unlimited -EwsMaxBurst Unlimited -EwsMaxConcurrency Unlimited -EwsMaxSubscriptions Unlimited -EwsRechargeRate Unlimited -IsServiceAccount:$true
5.Type the following command:
Set-ThrottlingPolicyAssociation -ThrottlingPolicy <Policy> -Identity <Account>
where <Policy> is the name of the policy and <Account> is the name of the service account to which the policy will be assigned.
To create the policy for User Accounts
1.Open the Exchange Management Shell and connect to Exchange Server.
2.Type the following command:
New-ThrottlingPolicy <Policy>
where <Policy> is a suitable, unique name for the policy (for example, OOMUserAccountPolicy)
3.On Exchange Server 2010 (SP1 and higher), type the following additional command:
Set-ThrottlingPolicy <Policy> -RCAMaxConcurrency $null -RCAPercentTimeInAD $null -RCAPercentTimeInCAS $null -RCAPercentTimeInMailboxRPC $null -CPAMaxConcurrency $null -CPAPercentTimeInCAS $null -CPAPercentTimeInMailboxRPC $null
4.On Exchange Server 2013 and Exchange Server 2016, type the following command:
Set-ThrottlingPolicy <Policy> -RcaMaxConcurrency Unlimited -RcaCutoffBalance Unlimited -RcaMaxBurst Unlimited -RcaRechargeRate Unlimited -CpaMaxConcurrency Unlimited -CpaCutoffBalance Unlimited -CpaMaxBurst Unlimited -CpaRechargeRate Unlimited
5.Type the following command:
Set-Mailbox <Account> -ThrottlingPolicy <Policy>
where <Account> is the name of the user account to which the policy will be assigned.
Note Repeat step 6 for each user that uses Out-of-Office Manager.
Note Changes to client throttling policies will not be applied immediately on your Exchange Server; please allow some time for the changes to become effective.
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