Indented!

Using PowerShell to create a version of Get-MailboxStatistics for Exchange 2003.

Get-MailboxStatistics returns a set of information about a mailbox for Exchange 2007. It is possible to retrieve roughly the same information using WMI for Exchange 2003.

The differences

The following table notes the differences in property names between Exchange 2003 and Exchange 2007.

In addition to these the MailboxGuid attribute is formatted slightly differently. The MailboxGuid is enclosed in curly braces, {}, these are stripped in the code (or added when a search is being performed using a GUID)

No formatting is applied to the output. The output from this function can be made to look like the Exchange 2007 version of Get-MailboxStatistics by using Format-Table.

Get-2003MailboxStatistics | Format-Table MailboxDisplayName, TotalItems, `
  StorageLimitStatus, LastLogonTime

This is the code for the function, it is not as flexible as the Exchange 2007 version with regard to pipelines, but it should accept simple input and work in much the same way otherwise.

Usage examples

# With a Mailbox Display Name
Get-2003MailboxStatistics "Chris Dent"
# With a Legacy Exchange DN ("-Identity" itself is optional)
Get-2003MailboxStatistics -Identity "/O=SomeOrg/OU=AdminGroup/CN=RECIPIENTS/CN=Someone"
# For a single Mailbox Database
Get-2003MailboxStatistics -Database "Mailbox Database"
# For a different server
Get-2003MailboxStatistics -Server "ExchangeServer02"

Get-MailboxStatistics for Exchange 2003

Function Get-2003MailboxStatistics {
  Param(
     [String]$Identity = "",
     [String]$Server = $Env:ComputerName,
     [String]$Database = ""
  )

  $Filter = "ServerName='$Server'"
  if ($Database -ne "" ) {
    $Filter = "$Filter AND StoreName='$Database'"
  }
  if ($Identity -ne "") {
    $Filter = "$Filter AND (MailboxGuid='{$Identity}' OR LegacyDN='$Identity'"
    $Filter = "$Filter OR MailboxDisplayName='$Identity')"
  }

  Get-WMIObject -ComputerName $Server `
    -Namespace "root/MicrosoftExchangeV2" -Class "Exchange_Mailbox" `
    -Filter $Filter | `
  Select-Object `
    AssocContentCount, `
    @{n='DateDiscoveredAbsentInDs';e={
      If ($_.DateDiscoveredAbsentInDs -ne $Null) {
        [Management.ManagementDateTimeConverter]::ToDateTime(`
          $_.DateDiscoveredAbsentInDs)
      }} }, `
    MailboxDisplayName, TotalItems, LastLoggedOnUserAccount, `
    @{n='LastLogonTime';e={ if ($_.LastLogonTime -ne $Null) { `
      [Management.ManagementDateTimeConverter]::ToDateTime($_.LastLogonTime)}}
    }, `
    @{n='LastLogoffTime';e={ if ($_.LastLogoffTime -ne $Null) { `
      [Management.ManagementDateTimeConverter]::ToDateTime($_.LastLogoffTime)}}
    }, `
    LegacyDN, `
    @{n='MailboxGuid';e={
      ([String]$_.MailboxGuid).ToLower() -Replace "\{|\}" }}, `
    @{n='ObjectClass';e={ "Mailbox" }}, `
    @{n='StorageLimitStatus';e={ `
      Switch ($_.StorageLimitInfo) {
        1 { "BelowLimit" }
        2 { "IssueWarning" }
        4 { "ProhibitSend" }
        8 { "NoChecking" }
        16 { "MailboxDisabled" } }} }, `
    DeletedMessageSize, Size, `
    @{n='Database';e={
      "$($_.ServerName)\$($_.StorageGroupName)\$($_.StoreName)" }}, `
    ServerName, StorageGroupName, StoreName, `
    @{n='Identity';e={ ([String]$_.MailboxGuid).ToLower() -Replace "\{|\}" }}
}

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