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Titel
The user has reached the maximum number of connections allowed -
Beschreibung
Archive Manager Exchange Edition loses connection to the Exchange server after a period of time and an error message similar to the one below is encountered:
Fail to create runspace for user "superuser" because the user has reached the maximum number of connections allowed
This issue reoccurs even after restarting the MAM services.
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Ursache
A throttling policy set on user profiles limits the connection from Archive Manager and Microsoft Exchange.
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Lösung
Open the Exchange Management Shell and run the preferred throttling policy set for the Archive Manager superuser profile below:
- Exchange 2013 - 2016 -2019
Add-RoleGroupMember -Identity "View-Only Organization Management" -Member "SUPERUSER"
Add-RoleGroupMember -Identity "Public Folder Management" -Member "SUPERUSER"
Get-MailboxDatabase | Add-ADPermission -User "SUPERUSER" -AccessRights ExtendedRight -ExtendedRights Receive-As, ms-Exch-Store-Admin -InheritanceType 'All'
New-ThrottlingPolicy MAM4Exchange
Set-ThrottlingPolicy MAM4Exchange -EwsCutoffBalance Unlimited -EwsMaxBurst Unlimited -EwsMaxConcurrency Unlimited -EwsMaxSubscriptions Unlimited -EwsRechargeRate Unlimited -RcaMaxConcurrency Unlimited -RcaCutoffBalance Unlimited -RcaMaxBurst Unlimited -RcaRechargeRate Unlimited -CpaMaxConcurrency Unlimited -CpaCutoffBalance Unlimited -CpaMaxBurst Unlimited -CpaRechargeRate Unlimited
Set-Mailbox "SUPERUSER" -ThrottlingPolicy MAM4Exchange
New-ManagementRoleAssignment -Name "Impersonation-MAM4Exchange" -Role "ApplicationImpersonation" -User "SUPERUSER" - Exchange 2010
Add-RoleGroupMember -Identity "View-Only Organization Management" -Member "SUPERUSER"
Add-RoleGroupMember -Identity "Public Folder Management" -Member "SUPERUSER"
Get-MailboxDatabase | Add-ADPermission -User "SUPERUSER" -AccessRights ExtendedRight -ExtendedRights Receive-As, ms-Exch-Store-Admin -InheritanceType 'All'
New-ThrottlingPolicy MAM4Exchange
Set-ThrottlingPolicy MAM4Exchange -RCAMaxConcurrency $null -RCAPercentTimeInAD $null -RCAPercentTimeInCAS $null -RCAPercentTimeInMailboxRPC $null
Set-Mailbox "SUPERUSER" -ThrottlingPolicy MAM4Exchange
New-ManagementRoleAssignment -Name "Impersonation-MAM4Exchange" -Role "ApplicationImpersonation" -User "SUPERUSER"
- Exchange 2013 - 2016 -2019