Thursday, April 24, 2014

Mass Import IP for Exchange Receive Connector

There are times when you are required to add many IPs addresses to the receive connector on Exchange 2010. This IPs are required to enable the exchange server to relay emails for alerts etc.
The powershell script below is something that is found from the community that is extremely useful

Copy the below and save it as a ps1 file

Simple Powershell script that can bulk import remote IP ranges from a text file in a determined Exchange Receive Connector.
The Import of the Remote IP ranges maintains the original values which are already present on the Selected Connector.
None - execute directly from the Exchange Management Shell


Exchange 2007
Exchange 2010
Exchange 2013
function Select-FileDialog
param([string]$Title,[string]$Directory,[string]$Filter="Text Files (*.txt)|*.txt")
[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
$objForm = New-Object System.Windows.Forms.OpenFileDialog
$objForm.InitialDirectory = $Directory
$objForm.Filter = $Filter
$objForm.Title = $Title
$objForm.ShowHelp = $true
$Show = $objForm.ShowDialog()

if ($Show -eq "OK")
return $objForm.FileName
function get_RecConnector{
$RecConns = Get-ReceiveConnector | Select -ExpandProperty Identity
$Count = 0;
Write-Host "Bulk Import of Remote IP Addresses for Exchange Receive Connectors" -ForegroundColor Green
Write-Host "Version 0.1" -ForegroundColor Green
Write-Host "" -ForegroundColor Green
Write-Host ""
Write-Host "Detected Receive Connectors: " -ForegroundColor Cyan
Write-Host ""
foreach($Connector in $RecConns){

Write-Host $Count "." $Connector -ForegroundColor White
$Count ++

Write-Host ""
$Choice = Read-Host "Please select the Receive Connector that you wish to work with."
Write-Host ""
import_RemoteIPRanges $RecConns[$Choice]
function import_RemoteIPRanges{
$FileName = Select-FileDialog "Open IP Range Text File..."
$IPs = Get-Content $FileName

foreach($IP in $IPs){
Write-Host "Adding IP Address :" $IP " to "$ConnectorID -ForegroundColor Cyan
$Rcnn = Get-ReceiveConnector "$ConnectorID"
$Rcnn.RemoteIPRanges += $IP
Set-ReceiveConnector "$ConnectorID" -RemoteIPRanges $Rcnn.RemoteIPRanges

Write-Host ""
Write-Host "Script Completed." -ForegroundColor Yellow

How to use

Before you use the script you should ensure that you have all of the IP addresses that you wish to add to a particular Receive Connector stored within a text file.

Each host should appear on a separate line. You can also use the CDIR address notation for an entire subnet if you wish to allow all hosts in a range to relay (for example add a line for .

1) Open the Exchange Management Shell, navigate to the directory where you have downloaded the script file and type:

<path>.\<FileName of th3 ps1 file you saved earlier>.ps1

2) You will then be presented with a list of all the detected receive connectors that the script has located. Choose the connector via its numerical identifier (the numbers on the left hand side).

3) You will then be prompted to locate your IP Range text file which you created earlier – browse to it and then click on the “Open” button.

4)The script will then process each host entry and add it to the selected Receive Connector.

5) After the script has completed – if you check the [ Network –> Receive Mail from remote servers that these IP addresses ] in the Exchange Management Console, you should see that your addresses have been added.

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