Powershell Exchange mailboxsizes

Hi All,

I need a powershell script that will tell me mailboxes above 1gb, I then need the name and email address and the move this mailboxes to a different dag. how do I do this?

thank you in advance.

regards,
kelly

Kelly GarciaSenior Systems AdministratorAsked: 2017-03-17

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LVL 67

sirbountyCommented: 2017-03-17

$mailboxes = get-mailbox -resultsize unlimited | where {$_.issuewarningquota -ge 900mb}
foreach ($mailbox in $mailboxes) {
  $stats get-mailboxstatistics $mailbox
  if ($stats.totalitemsize.value.togb() -ge 1) {
   'Account {0} located on {1} - {2} is using {3} mb of storage' -f $mailbox.samaccountname, $mailbox.servername, $mailbox.database.tostring(), $size.value.tomb()
  }
}

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LVL 30

Tom CieslikIT EngineerCommented: 2017-03-17

To see maiboxes grader than 1GB you can use this command

get-mailbox | Get-MailboxStatistics | where {$_.TotalItemSize -ge 1GB} |Sort-Object TotalItemSize

To export list to c:\temp\MailboxesOver1GB.csv (C:\Temp must exist on Exchange server)

get-mailbox | Get-MailboxStatistics | where {$_.TotalItemSize -ge 1GB} |Sort-Object TotalItemSize |Export-CSV c:\temp\MailboxesOver1GB.csv

To move it to different DAG you need to specify some more information about it.

LVL 30

Tom CieslikIT EngineerCommented: 2017-03-17

This will give you all information about mailbox but if you want to limit it only to DisplayName and mailbox size then use this:

get-mailbox -ResultSize Unlimited | Get-MailboxStatistics | where {$_.TotalItemSize -ge 3GB} |Sort-Object TotalItemSize -Descending |Select-Object DisplayName,TotalItemSize |Export-CSV c:\temp\mailboxesOver3GB.csv