Reporting on the Item Age (Count and Size) in a Mailbox using EWS and Powershell (MEC Sample)

This is sample 2 from the Item Age section of my MEC talk in this sample we'll look at reporting on the Folder ItemCounts and Size of Item's in a Mailbox based on the age of those items.

To work out the Size and Item Count of all the Items in a Mailbox and be able to report on the age of those Items requires that you enumerate through every item in every folder in a Mailbox. Doing this on a mailbox with a large number of folder Items will take some time (it's pretty elementary Watson). So to reduce the amount of work that the server has to do to return information about all the Items in the Mailbox it's important to use the IdOnly BasePropertySet and then add the properties that are required. For this report the following properties are used.

Size, DateTimeReceived, DateTimeCreated

This script first uses a FindFolder operation to enumerate all folders in a Mailbox and then on each folder a findItems is used to enumerate ever item.

Using just these three properties and a Hashtable we can create an aggregation of Year part of the DateTimeReceived (or DateTimeCreated) and the it produces a report like the following for all items in a Mailbox

I've also created a script that breaks out the age of items based on every folder and then create a report of every folder . This tends to be quite noisy but maybe useful if your looking for a more detailed breakdown.

I've put a download of the scripts here the code looks like

## Get the Mailbox to Access from the 1st commandline argument
$MailboxName = $args[0]
## Load Managed API dll
Add-Type -Path "C:\Program Files\Microsoft\Exchange\Web Services\1.2\Microsoft.Exchange.WebServices.dll"
## Set Exchange Version
$ExchangeVersion = [Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP2
## Create Exchange Service Object
$service = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService($ExchangeVersion)
## Set Credentials to use two options are availible Option1 to use explict credentials or Option 2 use the Default (logged On) credentials
#Credentials Option 1 using UPN for the windows Account
$psCred = Get-Credential
$creds = New-Object System.Net.NetworkCredential($psCred.UserName.ToString(),$psCred.GetNetworkCredential().password.ToString())
$service.Credentials = $creds
#Credentials Option 2
#service.UseDefaultCredentials = $true
## Choose to ignore any SSL Warning issues caused by Self Signed Certificates
## Code From http://poshcode.org/624
## Create a compilation environment
$Provider=New-Object Microsoft.CSharp.CSharpCodeProvider
$Compiler=$Provider.CreateCompiler()
$Params=New-Object System.CodeDom.Compiler.CompilerParameters
$Params.GenerateExecutable=$False
$Params.GenerateInMemory=$True
$Params.IncludeDebugInformation=$False
$Params.ReferencedAssemblies.Add("System.DLL") | Out-Null
$TASource=@'
namespace Local.ToolkitExtensions.Net.CertificatePolicy{
public class TrustAll : System.Net.ICertificatePolicy {
public TrustAll() {
}
public bool CheckValidationResult(System.Net.ServicePoint sp,
System.Security.Cryptography.X509Certificates.X509Certificate cert,
System.Net.WebRequest req, int problem) {
return true;
}
}
}
'@
$TAResults=$Provider.CompileAssemblyFromSource($Params,$TASource)
$TAAssembly=$TAResults.CompiledAssembly
## We now create an instance of the TrustAll and attach it to the ServicePointManager
$TrustAll=$TAAssembly.CreateInstance("Local.ToolkitExtensions.Net.CertificatePolicy.TrustAll")
[System.Net.ServicePointManager]::CertificatePolicy=$TrustAll
## end code from http://poshcode.org/624
## Set the URL of the CAS (Client Access Server) to use two options are availbe to use Autodiscover to find the CAS URL or Hardcode the CAS to use
#CAS URL Option 1 Autodiscover
$service.AutodiscoverUrl($MailboxName,{$true})
"Using CAS Server : " + $Service.url
#CAS URL Option 2 Hardcoded
#$uri=[system.URI] "https://casservername/ews/exchange.asmx"
#$service.Url = $uri
## Optional section for Exchange Impersonation
#$service.ImpersonatedUserId = new-object Microsoft.Exchange.WebServices.Data.ImpersonatedUserId([Microsoft.Exchange.WebServices.Data.ConnectingIdType]::SmtpAddress, $MailboxName)
# Bind to the Inbox Folder
$folderid= new-object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Inbox,$MailboxName)
$Inbox = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($service,$folderid)
#Define ItemView to retrive just 1000 Items
$ivItemView = New-Object Microsoft.Exchange.WebServices.Data.ItemView(1000)
$psPropset= new-object Microsoft.Exchange.WebServices.Data.PropertySet([Microsoft.Exchange.WebServices.Data.BasePropertySet]::IdOnly)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::Size)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::DateTimeReceived)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::DateTimeCreated)
$ivItemView.PropertySet = $psPropset
$TotalSize = 0
$TotalItemCount = 0
#Define Function to convert String to FolderPath
function ConvertToString($ipInputString){
$Val1Text = ""
for ($clInt=0;$clInt -lt $ipInputString.length;$clInt++){
$Val1Text = $Val1Text + [Convert]::ToString([Convert]::ToChar([Convert]::ToInt32($ipInputString.Substring($clInt,2),16)))
$clInt++
}
return $Val1Text
}
#Define Extended properties
$PR_FOLDER_TYPE = new-object Microsoft.Exchange.WebServices.Data.ExtendedPropertyDefinition(13825,[Microsoft.Exchange.WebServices.Data.MapiPropertyType]::Integer);
$folderidcnt = new-object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::MsgFolderRoot,$MailboxName)
#Define the FolderView used for Export should not be any larger then 1000 folders due to throttling
$fvFolderView = New-Object Microsoft.Exchange.WebServices.Data.FolderView(1000)
#Deep Transval will ensure all folders in the search path are returned
$fvFolderView.Traversal = [Microsoft.Exchange.WebServices.Data.FolderTraversal]::Deep;
$psPropertySet = new-object Microsoft.Exchange.WebServices.Data.PropertySet([Microsoft.Exchange.WebServices.Data.BasePropertySet]::FirstClassProperties)
$PR_Folder_Path = new-object Microsoft.Exchange.WebServices.Data.ExtendedPropertyDefinition(26293, [Microsoft.Exchange.WebServices.Data.MapiPropertyType]::String);
#Add Properties to the Property Set
$psPropertySet.Add($PR_Folder_Path);
$fvFolderView.PropertySet = $psPropertySet;
#The Search filter will exclude any Search Folders
$sfSearchFilter = new-object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo($PR_FOLDER_TYPE,"1")
$fiResult = $null
$rptHash = @{}
$minYear = (Get-Date).Year
$maxYear = (Get-Date).Year
#The Do loop will handle any paging that is required if there are more the 1000 folders in a mailbox
do {
$fiResult = $Service.FindFolders($folderidcnt,$sfSearchFilter,$fvFolderView)
foreach($ffFolder in $fiResult.Folders){
$foldpathval = $null
#Try to get the FolderPath Value and then covert it to a usable String
if ($ffFolder.TryGetProperty($PR_Folder_Path,[ref] $foldpathval))
{
$binarry = [Text.Encoding]::UTF8.GetBytes($foldpathval)
$hexArr = $binarry | ForEach-Object { $_.ToString("X2") }
$hexString = $hexArr -join ''
$hexString = $hexString.Replace("FEFF", "5C00")
$fpath = ConvertToString($hexString)
}
"FolderPath : " + $fpath
#Define ItemView to retrive just 1000 Items
$ivItemView = New-Object Microsoft.Exchange.WebServices.Data.ItemView(1000)
$psPropset= new-object Microsoft.Exchange.WebServices.Data.PropertySet([Microsoft.Exchange.WebServices.Data.BasePropertySet]::IdOnly)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::Size)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::DateTimeReceived)
$psPropset.Add([Microsoft.Exchange.WebServices.Data.ItemSchema]::DateTimeCreated)
$ivItemView.PropertySet = $psPropset
$fiItems = $null
do{
$fiItems = $service.FindItems($ffFolder.Id,$ivItemView)
#[Void]$service.LoadPropertiesForItems($fiItems,$psPropset)
foreach($Item in $fiItems.Items){
$dateVal = $null
if($Item.TryGetProperty([Microsoft.Exchange.WebServices.Data.ItemSchema]::DateTimeReceived,[ref]$dateVal )-eq $false){
$dateVal = $Item.DateTimeCreated
}
if($rptHash.ContainsKey($dateVal.Year)){
$rptHash[$dateVal.Year].TotalNumber += 1
$rptHash[$dateVal.Year].TotalSize += [Int64]$Item.Size
}
else{
$rptObj = "" | Select TotalNumber,TotalSize
$rptObj.TotalNumber = 1
$rptObj.TotalSize = [Int64]$Item.Size
$rptHash.add($dateVal.Year,$rptObj)
if($dateVal.Year -lt $minYear){$minYear = $dateVal.Year}
}
}
$ivItemView.Offset += $fiItems.Items.Count
}while($fiItems.MoreAvailable -eq $true)
}
$fvFolderView.Offset += $fiResult.Folders.Count
}while($fiResult.MoreAvailable -eq $true)
$rptCollection = @()
$fnFinalreporttlt = "" | Select Name,TotalNumber,TotalSize
$fnFinalreporttlt.Name = $MailboxName
$rptCollection += $fnFinalreporttlt
$fnFinalreport = "" | Select Name,TotalNumber,TotalSize
$rptCollection += $fnFinalreport
$rptHash.GetEnumerator() | Sort-Object Name | ForEach-Object {
$fnFinalreport = "" | Select Name,TotalNumber,TotalSize
$fnFinalreport.Name = $_.key
$fnFinalreport.TotalNumber = $rptHash[$_.key].TotalNumber
$fnFinalreport.TotalSize = [Math]::Round($rptHash[$_.key].TotalSize/1MB,2)
$fnFinalreporttlt.TotalNumber += $rptHash[$_.key].TotalNumber
$fnFinalreporttlt.TotalSize += [Math]::Round($rptHash[$_.key].TotalSize/1MB,2)
$rptCollection += $fnFinalreport
}
$tableStyle = @"
<style>
BODY{background-color:white;}
TABLE{border-width: 1px;
border-style: solid;
border-color: black;
border-collapse: collapse;
}
TH{border-width: 1px;
padding: 10px;
border-style: solid;
border-color: black;
background-color:#66CCCC
}
TD{border-width: 1px;
padding: 2px;
border-style: solid;
border-color: black;
background-color:white
}
</style>
"@
$body = @"
<p style="font-size:25px;family:calibri;color:#ff9100">
$TableHeader
</p>
"@
$rptCollection | ConvertTo-HTML -head $tableStyle –body $body | Out-File c:\temp\MailboxAgeReportSummary.htm

How to test SMTP using Opportunistic TLS with Powershell and grab the public certificate a SMTP server is using

Most email services these day employ Opportunistic TLS when trying to send Messages which means that wherever possible the Messages will be encrypted rather then the plain text legacy of SMTP. This method was defined in RFC 3207 "SMTP Service Extension for Secure SMTP over Transport Layer Security" and there's a quite a good explanation of Opportunistic TLS on Wikipedia https://en.wikipedia.org/wiki/Opportunistic_TLS . This is used for both Server to Server (eg MTA to MTA) and Client to server (Eg a Message client like Outlook which acts as a MSA) the later being generally Authenticated. Basically it allows you to have a normal plain text SMTP conversation that is then upgraded to TLS using the STARTTLS verb. Not all servers will support this verb so if its not supported then a message is just sent as Plain text. TLS relies on PKI certificates and the administrative issue s that come around certificate management like expired certificates which is why I wrote th

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Reporting on the Item Age (Count and Size) in a Mailbox using EWS and Powershell (MEC Sample)

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