$ExchangeHost = "ExCas01"
$ExchangeServer = Get-ExchangeServer -Identity $ExchangeHost
 
# Get Connections
if ($ExchangeServer.IsClientAccessServer -eq $True)
{
	# OWA Connections
	$HostOWAConnections = (Get-Counter "\MSExchange OWA\Current Unique Users"  -ComputerName $ExchangeHost).CounterSamples[0].CookedValue
 
	# RPC Connections
	$HostRPCConnections = (Get-Counter "\MSExchange RpcClientAccess\User Count"  -ComputerName $ExchangeHost).CounterSamples[0].CookedValue
 
	# POP3 Connections
	$HostPOP3Connections = (Get-Counter "\MSExchangePop3(1)\Connections Current"  -ComputerName $ExchangeHost).CounterSamples[0].CookedValue
 
	# IMAP Connections
	$HostIMAPConnections = (Get-Counter "\MSExchangeImap4(1)\Current Connections"  -ComputerName $ExchangeHost).CounterSamples[0].CookedValue
 
	# Exchange Connections
	[int]$ExchangeActiveConnections = [int]$HostOWAConnections + [int]$HostRPCConnections + [int]$HostPOP3Connections + [int]$HostIMAPConnections
}