Check what Outlook versions are connecting to you Exchange servers

If you are running Exchange 2010, 2013, 2016 or 2019. You will need to run the following PowerShell script and in this example I am going to be targeting Exchange 2010.

# This is just default path to Exchange 2010 RPC logs. Change it to match your Exchange version.
$logpath = 'C:\Program Files\Microsoft\Exchange Server\V14\Logging\RPC Client Access'

# We limit the amount of logs by timeframe. This is to get more current view.
$files = Get-ChildItem $logpath |Where-Object {$_.LastWriteTime -ge (Get-Date).AddDays(-15)}

# Now, let's get the logs.
$logs = $files | ForEach {Get-Content $_.FullName}| Where-Object {$_ -notlike '#*'}

# We covert the data to PowerShell objects
$result = $logs |ConvertFrom-Csv -Header date-time,session-id,seq-number,client-name,organization-info,client-software,client-software-version,client-mode,client-ip,server-ip,protocol,application-id,operation,rpc-status,processing-time,operation-specific,failures

# And finally we filter the client information  and group it by version number.
$result | Where-Object {$_.'client-software' -eq 'OUTLOOK.EXE'}|group client-software-version

Once you have obtained the required information, you need identity which Outlook version is contacting to your Exchange server by using the following table.

Version numberName
5.0.3165.0Outlook 2000
6.0.7654.12Outlook 2000
6.0.8153.0Outlook 2000
6.0.8165.0Outlook 2000
6.0.8211.0Outlook 2000
6.0.8244.0Outlook 2000
10.0.0.2627Outlook 2002
10.0.0.4115Outlook 2002 SP2
10.0.0.6515Outlook 2002 SP3
10.0.0.6742Outlook 2002 SP3
11.0.5604.0Outlook 2003
11.0.6352.0Outlook 2003 SP1
11.0.6555.0Outlook 2003 SP2
11.0.8000.0Outlook 2003 SP2
11.0.8161.0Outlook 2003 SP3
11.0.8200.0Outlook 2003 SP3
11.0.8303.0Outlook 2003 SP3
12.0.4518.1014Outlook 2007 RTM
12.0.6024.5000Outlook 2007 RTM
12.0.6211.1000Outlook 2007 SP1
12.0.6300.5000Outlook 2007 SP1
12.0.6315.5000Outlook 2007 SP1
12.0.6423.1000Outlook 2007 SP2
12.0.6504.5001Outlook 2007 SP2
12.0.6509.5000Outlook 2007 SP2
12.0.6529.5000Outlook 2007 SP2
12.0.6539.5000Outlook 2007 SP2
12.0.6550.5000Outlook 2007 SP2
12.0.6554.5000Outlook 2007 SP2
12.0.6557.5000Outlook 2007 SP2
12.0.6562.5003Outlook 2007 SP2
12.0.6606.1000Outlook 2007 SP3
12.0.6661.5000Outlook 2007 SP3
12.0.6665.5000Outlook 2007 SP3
14.0.4734.1000Outlook 2010 RTM
14.0.6025.1000Outlook 2010 SP1
14.0.6109.5000Outlook 2010 SP1
14.0.6117.5001Outlook 2010 SP1
14.0.7151.5000Outlook 2010
14.0.7157.5000Outlook 2010
14.0.7160.5000Outlook 2010
15.0.4128.1019Outlook 2013 Preview
15.0.4727.1000Outlook 2013
15.0.4753.1003Outlook 2013
16.0.4229.1029Outlook 2016

Regards
The Author – Blogabout.Cloud

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