Commands › Exchange Online

Set-RpcClientAccess

Exchange Online ExchangeOnlineManagement Set-*

Modify the settings of the Microsoft Exchange RPC Client Access service on Exchange servers that have the Client Access server role installed. These settings affect Outlook clients that connect by using Outlook Anywhere (RPC over HTTP).

Quick start script

# Set-RpcClientAccess — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-RpcClientAccess
$before | Format-List

# 3. Make the change (dry run first)
Set-RpcClientAccess -Server <ServerIdParameter> -WhatIf
Set-RpcClientAccess -Server <ServerIdParameter>

# 4. Verify and diff
$after = Get-RpcClientAccess
Compare-Object ($before | Out-String) ($after | Out-String)

Syntax

Set-RpcClientAccess -Server <ServerIdParameter>
 [-BlockedClientVersions <String>]
 [-Confirm]
 [-DomainController <Fqdn>]
 [-EncryptionRequired <Boolean>]
 [-MaximumConnections <Int32>]
 [-Name <String>]
 [-WhatIf]
 [<CommonParameters>]

Parameters (8)

Parameter	Type	Required	What it controls
-Server	ServerIdParameter	yes	The Server parameter specifies the Client Access server where you want to run this command. You can use any value that uniquely identifies the server. For example:
-BlockedClientVersions	String		The BlockedClientVersions parameter specifies the RPC client versions that aren't allowed to connect to the specified Exchange server. For example, the Microsoft Exchange RPC Client Access service rejects an Outlook...
-Confirm	SwitchParameter		The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on whether the cmdlet requires confirmation before proceeding.
-DomainController	Fqdn		The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name...
-EncryptionRequired	Boolean		The EncryptionRequired parameter specifies whether encryption is required for RPC client connections. Valid values are:
-MaximumConnections	Int32		The MaximumConnections parameter specifies the maximum number of concurrent client connections that are allowed by the Microsoft Exchange RPC Client Access service. The default value is 65536.
-Name	String		The Name parameter specifies the name of the configuration object in Active Directory. By default, this parameter is set to RpcClientAccess.
-WhatIf	SwitchParameter		The WhatIf switch shows what the command does without making any changes. You don't need to specify a value with this switch.

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.