Get-MailboxStatistics option

I am running this against MSOL but don't think it will matter. I am looking to generate a report that shows mailboxes that have not been logged onto or ones that have not been logged onto in a while. So far, I am running get-mailbox -resultsize
unlimited | Get-MailboxStatistics | Sort-object lastlogontime -Descending | fl displayname, LastLogonTime >C:\Users\username\Documents\LastLogonTime.CSV
My issues are:
1. Mailboxes that have not been logged into are not reported.
2. I have thousands of mailboxes and only want the output to show the ones with the most time since they were last logged onto. I am OK with just limiting the result size so long as the results are the ones with the most time since last logon.
Any ideas would be appreciated!
~Eric

Hi Eric,
I have some tests in my environment using Exchange 2013. You can use the following cmdlet Amit provided to get the inactive users who are not accessed in last 90 days and export the result to csv file.
Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | Where{$_.Lastlogontime -lt (Get-Date).AddDays(-90)} | Select DisplayName, LastLoggedOnUserAccount, LastLogonTime | Export-csv C:\InactiveUsers.csv
What's more, the mailboxes which are not accessed at all will be listed in the warning lists.
Is there any update with your issue?
Best regards,
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Amy Wang
TechNet Community Support

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Get-MailboxStatistics command to run and not count hidden objects

I have a script that generates a report on a set of mailboxes in an OU and how many messages are in the Inbox using the following command:
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so far I have not found a solution.
Is there a way to fun the Get-MailboxFolderStatistics command and folder out hidden objects?

`Thank you for the response, but unfortunately I have been tasked to find a way to get this working. I understand that the Get-MailboxStatistics command is unable to filter out hidden items but I need to find a way to make this report possible. I can understand
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Speeding up the Get-MailboxStatistics cmdlet for ~19K mailboxes.

Greetings,
While this is partially a PowerShell scripting question, I am posting it in the Exchange 2010 forum because the issues I believe center around the Get-MailboxStatistics itself, and the speed of my scripts in Exchange 2010 (possibly
due to the additional overhead in remote PowerShelling).
In my Exchange 2010 system we have ~19,000 mailboxes spread accross multiple DAG nodes, and ever since we upgraded from Exchange 2007 to Exchange 2010, gathering all of the mailboxes and then gathering their statistics takes almost
twice as long. For example a script that used to take ~45 minutes in Exchange 2007, takes about an hour and a ½.
The issue I am running into when clocking core aspects of a mailbox data gathering scripts is that the Get-MailboxStatistics seems to be taking an excessively long period of time, and I am hoping someone can help me figure out a
way to speed up the process.
For example this is a boiled down script I created, where I ripped out a ton of other things and just focused on the Get-Mailbox and Get-MailboxStatistics commands:
$BaseOU
=
"Customers"
# Capture the date and time in a variable using the "Fri 11/01/2010 6:00 AM" format.
$DateTime
=
Get-Date
-Format
"ddd MM/dd/yyyy h:mm tt"
# Select a single domain controller to use for all the queries (to avoid mid AD replication inconsistencies)
from the environment variable LOGONSERVER - this ensures the variable will always be dynamically updated.
$DomainController
= ($Env:LogonServer).Substring(2)
# Set the loop count to 0 so it can be used to track the percentage of completion.
$LoopCount
= 0
# Start tracking the time this script takes to run.
$StopWatch1
=
New-Object
System.Diagnostics.Stopwatch
$StopWatch1.Start()
# Get the mailbox info for all IHS customer mailboxes.the storage limit is Prohibit send or mailbox disabled
Write-Host
-ForegroundColor
Green
"Beginning mailbox gathering. In a short while a progress bar will appear."
$GatheredMailboxes
=
Get-Mailbox
-ResultSize:Unlimited
-OrganizationalUnit
"ADDomain.com/$BaseOU"
-DomainController
$DomainController |
Select Identity,DisplayName,ProhibitSendQuota
Write-Host
-ForegroundColor
Green
"Mailbox data gathering is complete."
$StopWatch1.Stop()
$StopWatch2
=
New-Object
System.Diagnostics.Stopwatch
$StopWatch2.Start()
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in
$GatheredMailboxes) {
# Show a status bar for progress while the mailbox data is collected.
$PercentComplete
= [Math]::Round(($LoopCount++
$GatheredMailboxes.Count
* 100),1)
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$Mailbox.DisplayName
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-Activity
"Mailbox Data Gathering in Progress"
-PercentComplete
$PercentComplete
`
-Status
"$PercentComplete% Complete"
-CurrentOperation
"Current Mailbox: $CurrentMBDisplay"
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Get-MailboxStatistics
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run.
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http://social.technet.microsoft.com/Forums/en-US/winserverpowershell/thread/9ceefddd-7a59-44ec-8fc0-8de244acb58b
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users to a datatable. That discussion also made think the foreach loop itself is slowing things down but unclear as to how/why if that is true.
Can someone help share some ideas on how to speed up this process? I think there are some other things I could try but I can’t think of them.
Thank you in advance.

I think it's impossible to speed up the Get-MailboxStatistics when it is being called for each and every mailbox individually.
I read somewhere in other posts people were having better performance by calling the cmdlet against an entire database or server so I gave it a shot with this code:
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# Start tracking the time this script takes to run.
$StopWatch = New-Object System.Diagnostics.Stopwatch
$StopWatch.Start()
$MailboxStatistics = New-Object System.Data.DataTable “MailboxStatistics”
$MailboxStatistics.Columns.Add("TotalitemSize",[String]) | Out-Null
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$MailboxStatistics.Columns.Add("LastLogonTime",[String]) | Out-Null
$MailboxStatistics.Columns.Add("LastLogoffTime",[String]) | Out-Null
$MailboxStatistics.Columns.Add("MailboxGUID",[String]) | Out-Null
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$NewMBXStatsDTRow.LastLogoffTime = $MailboxStats.LastLogoffTime
$NewMBXStatsDTRow.MailboxGUID = $MailboxStats.MailboxGuid.ToString()
$MailboxStatistics.Rows.Add($NewMBXStatsDTRow)
$StopWatch.Stop()
$ElapsedTime = $StopWatch.Elapsed
Write-Host "The script took" $ElapsedTime.Hours "hours," $ElapsedTime.Minutes "minutes, and" $ElapsedTime.Seconds `
"seconds to run."
Here are the results in speed:
The script took 0 hours, 3 minutes, and 13 seconds to run.
So yeah... ~3 minutes versus ~1 hour, I would say that's an improvement.
Now I will go back to my script and as I process each mailbox I will pull it's statistics information out of the DataTable using its GUID with:
If ($MailboxStats = $MailboxStatistics.Rows.Find($Mailbox.MailboxGUID)) {
# Insert mailbox statistics processing here using the $MailboxStats variable with "." extensions.
} Else {
# Mailbox statistics weren't found so go grab them individually as a backup mechanism for scenarios when a user's mailbox got moved out of the DAG to a non-DAG database for whatever reason.
It's a little silly that I have to extract the information out of each DAG server and put it in an in-memory table just to speed this process up, but clearly there is overhead with the Get-MailboxStatistics cmdlet and grabbing more mailboxes at once helps
negate this issue.
I'm going to mark my own response as an answer because I don't think anyone else is going to come up with something better than what I put together.

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Restore the iPod from the computer to which the iPod is synced. For information and instructions, see:
http://support.apple.com/kb/ht1212
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Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Communities page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums and in the Apple Knowledge Base, before you post a question.

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