MS-Exchange Server 2019

Requirements

• Administrative access to the MS Exchange 2019 system on which the client-access role is installed
• Domain Administrator permissions or equivalent permissions in order to define or assign Roles and Scopes.

Configuration steps

1. Create a user in the Active Directory which has access to all mailboxes.
   This method is called impersonation
   Our recommendation: RdxMaildepotImporter.

2. Grant access permissions to this account.
   Execute the following command in the Microsoft Exchange Management Shell:

   New-ManagementRoleAssignment -Name:"Reddoxx Impersonation" -Role:ApplicationImpersonation -User:RdxMailDepotImporter@domain.tld

3. There is a limited number of results which each folder can receive, therefore an error occurs in folders with a large quantity of mails.
   The following three commands in the Exchange Management Shell allows you to create a policy in which no limits are set:

   New-ThrottlingPolicy ReddoxxImport
   Set-ThrottlingPolicy ReddoxxImport -RCAMaxConcurrency Unlimited -EWSMaxConcurrency Unlimited -EWSMaxSubscriptions Unlimited -CPAMaxConcurrency Unlimited -EwsCutoffBalance Unlimited -EwsMaxBurst Unlimited -EwsRechargeRate Unlimited
   Set-Mailbox RdxMailDepotImporter@domain.tld -ThrottlingPolicy ReddoxxImport

4. If you would like to erase the policy after the Import process has finished, you can do this with the following two commands:

   Set-Mailbox RdxMailDepotImporter@domain.tld -ThrottlingPolicy $null
   Remove-ThrottlingPolicy ReddoxxImport