How to get Mailbox usage using PowerShell in Exchange Online

Hi Everyone,
In today's video, I will show how you can use PowerShell to Get UserMailbox or Sharedmailbox usage. They all show you the same result, with slight differences, and I used them a lot at work.
First Command
Get-Mailbox -Identity "MailboxName" | Get-MailboxStatistics | Select-Object DisplayName, ItemCount, TotalItemSize | Format-Table -autosize
Second Command
Get-Mailbox | Get-MailboxStatistics | Select-Object DisplayName, @{name=”TotalItemSize (GB)”;expression={[math]::Round((($_.TotalItemSize.Value.ToString()).Split(“(“)[1].Split(” “)[0].Replace(“,”,””)/1GB),2)}},ItemCount | Sort “TotalItemSize (GB)” -Descending

[@G4MBIT]

Good stuff, mate

[@av8dr]

Thank you for this. Can you show how to increase an individual's mailbox size?

[@TechTripChannel]

Hi, please watch my video ruclips.net/video/7gFzDRG6eTA/видео.html
You can increase the mailbox size in the Registry. Let me know if you have any questions.

[@DMBTravels2023]

Hello TechTrip, thank you for this.
can i ask ? what is the command when you are going to purge a certain mailbox? like in outlook app user unable to delete or receive emails. sometimes i cause due to usage are too large or within the mailbox capacity. thanks sir

[@TechTripChannel]

Hi Jeem Barcail, there is a way to delete certain emails from a mailbox by a specific date range. I will create a how-to video in a few days. Is this what you are looking for?

[@thehodophilechamp5242]

You can run commands for mange purge

[@25_zubairkazi77]

How do I find a powershell command to check when user mailbox was converted in powershell??

[@sunny19886]

What if you want to list down all the shared mailboxes you have so i can then find out who got access to what, how can i do this?

[@shailendrapuri4075]

how can we get all unlicensed shared mailbox size?

[@TechTripChannel]

I have a cmdlet for that; I will post a video soon.

[@TechTripChannel]

Hi, this should work. Just copy and paste the command.
#To check Shared mailbox size
$SMbx = Get-Mailbox -RecipientTypeDetails SharedMailbox -ResultSize Unlimited
$Report = @()
ForEach ($S in $SMbx) {
$Stat = (Get-MailboxStatistics -Identity $S.Alias | Select ItemCount, TotalItemSize)
$ReportLine = [PSCustomObject][Ordered]@{
Mailbox = $S.DisplayName
TotalItems = $Stat.ItemCount
MailboxSize = $Stat.TotalItemSize
Quota = $S.ProhibitSendReceiveQuota
Licensed = $S.SkuAssigned}
$Report += $ReportLine }
$Report | Format-Table Mailbox, TotalItems, MailboxSize, Quota, Licensed -AutoSize

[@yogeshm8344]

Hi.. can i export all outlook mail to pst format only use powershell

[@TechTripChannel]

Hi,
Yes, you can; if you like, I can make a video.

[@yogeshm8344]

@@TechTripChannel bro but i need now for my project

[@yogeshm8344]

@@TechTripChannel i use some methods but manually export..last process but i need export to use only powershell please help me

[@TechTripChannel]

I can give you the commands:
First, make sure you have the Import/Export role.
You can do it from the O365 Admin Center.
When you have assigned the role, create a folder and give Exchange Trusted Subsystem Read/Write access (right-click on the folder and select Share with)
You need to use New-MailboxExportRequest and it only supports exporting to a UNC path.
Run Powershell as an admin, the run this command:
New-MailboxExportRequesr -Mailbox -FilePath "\\FilePath\fileName.pst\\
This will export the mailbox
If you need to check the status run this:
Get-MailboxExportRequest
I hope this helps.

[@yogeshm8344]

@@TechTripChannel thanks bro.
But i want all user mail box in my organization