RPC encryption disabled by default in Exchange 2010 SP1

During one of my project on Exchange migration, i just realized that the default RPC encryption is disabled in Exchange 2010 SP1.

Below is the PowerShell command to retrieve the RPC encryption setting.

Get-RPCClientAccess | fl name, encryptionrequired (the results will list out the RPC encryption setting of all Exchange Servers)

Get-RPCClientAccess -Server ServerName | fl EncryptionRequired (the results will only list out the RPC encryption setting of specified server)

To enable/disable back the RPC encryption, just tweak the PowerShell command for "True" and "False"

Set-RpcClientAccess -Server ServerName -EncryptionRequired $True (enable encryption)

Set-RpcClientAccess -Server ServerName -EncryptionRequired $False (disable encryption)